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Carbon cycle

Total questions: 215

Worksheet time: 11hrs 45mins

Name
Class
Date
1.
What does NOT produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
2.
TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.
a)
True
b)
False
3.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
4.
Carbon can be found in...
a)
The atmosphere
b)
Soil
c)
Fossil fuels
d)
All of the above
5.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
6.
Combustion is another word for __________.
a)
Transportation
b)
Respiration
c)
Fossil Fuels
d)
Burning
7.
Respiration is the process by which animals take in _____ and release _____. 
a)
photosynthesis, air
b)
carbon, oxygen
c)
oxygen
d)
oxygen, carbon dioxide
8.
What process occurs when coal (fossil fuel) is used for energy?
a)
Decomposition
b)
Combustion
c)
Pressurization 
d)
Respiration 
9.
The diagram shows the flow of organic molecules through an ecosystem. What two processes are identified by the labels X and Y?
a)
X : Respiration
Y : Predation
b)
X : Adaptation
Y : Decomposition
c)
X : Fermentation
Y : Nitrogen Fixation
d)
X : Decomposition
Y : Respiration
10.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
11.
Which of the following is an example of a decomposer?
a)
Owl
b)
Fish
c)
Tree
d)
Mushroom
12.

C6H12O6 is also known as glucose (sugar). Where is it found?

a)

Plants

b)

Animals

c)

Both plants and animals

d)

Neither plants or animals

13.

The circulation of the element Carbon among Earth's atmosphere, land, oceans, and organisms is called _____________.

a)

the Carbon Cycle

b)

the Oxygen Cycle

c)

the Carbon dioxide Cycle

d)

the Water Cycle

14.

When animals eat plants, the carbon that the plant contains is absorbed by the animals.

a)

True

b)

False

15.

How do animals get carbon?

a)

By eating plants and or other animals.

b)

They absorb it from the atmosphere.

c)

From the ground

d)

They do not get carbon from anywhere.

16.

What are fossil fuels made from?

a)

Plants and animals that are buried underground for millions of years.

b)

They absorb it from the atmosphere.

c)

Water

d)

Wind

17.

When humans EXHALE, we release __________________.

a)

Oxygen

b)

Carbon Dioxide

c)

Nitrogen

d)

Water

18.

What is CO2?

a)

Carbon Monoxide

b)

Carbon Trioxide

c)

Carbon Dioxide

d)

Oxygen

19.

Which of the following are fossil fuels?

a)

Coal, water, oil

b)

Oxygen, coal, oil

c)

Coal, Oil, Natural Gas

d)

None of the above

20.

Which of the following is correct?

a)

There is as much carbon on earth as when it was formed

b)

Carbon is being created whenever it is recycled

c)

Carbon is lost every time it is recycled

d)

Carbon changes to different forms and is never recovered

21.

What is the greatest contributor to atmospheric carbon?

a)

burning garbage

b)

burning biomass

c)

transportation

d)

household usage

22.

What are two (2) ways to reduce the carbon emissions from passenger cars?

a)

Use less expensive gas

b)

Carpooling

c)

Public Transportation

d)

Driving only passenger cars

23.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
24.
How do living organisms return carbon to the atmosphere in the carbon cycle?
a)
respiration and photosynthesis
b)
 decomposition and respiration
25.
Which of the following add carbon dioxide to the atmosphere?
a)
volcanoes
b)
combustion of fossil fuels
c)
animal and plant respiration
d)
all of these
26.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
27.
The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?
a)
lower levels of ozone in the atmosphere
b)
lower levels of nitrogen in the atmosphere
c)
higher levels of carbon dioxide and other greenhouse gases in the atmosphere
d)
higher levels of oxygen in the atmosphere
28.

With the help of the Sun, through the process of photosynthesis, carbon dioxide is pulled from the air to make plant________

a)

leaves

b)

food

c)

roots

d)

nutrients

29.

Through food chains, the carbon that is in plants moves to the animals that eat them. When an animal eats another animal, carbon is ___________________.

a)

released

b)

transferred

c)

dissolved

d)

gone

30.

Which process contributes carbon dioxide to the atmosphere?

a)

respiration

b)

photosynthesis

c)

tree farms

31.

Which process removes carbon dioxide from the atmosphere?

a)

deforestation

b)

tree farms

c)

burning fossil fuels

d)

cellular respiration

32.

Which of the following is correct?

a)

There is as much carbon on earth as when it was formed

b)

Carbon is being created whenever it is recycled

c)

Carbon is lost every time it is recycled

d)

Carbon changes to different forms and is never recovered

33.

What is the greatest contributor to atmospheric carbon?

a)

burning garbage

b)

burning biomass

c)

transportation

d)

household usage

34.

What are two (2) ways to reduce the carbon emissions from passenger cars?

a)

Use less expensive gas

b)

Carpooling

c)

Public Transportation

d)

Driving only passenger cars

35.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
36.
Carbon can be found in...
a)
The atmosphere
b)
Soil
c)
Fossil fuels
d)
All of the above
37.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
38.

Respiration is the process by which animals take in _____ and release _____ to make energy. 

a)
photosynthesis, air
b)
carbon, oxygen
c)
oxygen
d)
oxygen, carbon dioxide
39.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
40.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)

CO2 +light+H2O --> O2 + glucose

b)

CO2 + glucose + H2O --> O2 + light

c)

O2 + light + H2O --> CO2 + Glucosg

d)

CO2 + O2 + H2O --> Light+ glucose

41.

Cellular Respiration involves the chemical breakdown of _____ to form ATP Energy

a)

Fats

b)

Fructose

c)

Glucose

d)

Proteins

42.

Which process(es) release carbon dioxide into the atmosphere?

a)

respiration

b)

combustion

c)

photosynthesis

d)

feeding

43.

Which process(es) take carbon dioxide out of the atmosphere?

a)

respiration

b)

combustion

c)

photosynthesis

d)

feeding

44.

What type of organism receives carbon present in dead plants and animals?

a)

producer

b)

primary consumer

c)

secondary consumer

d)

decomposer

45.
Burning fossil fuel has which effect in the carbon cycle?
a)
It removes carbon dioxide from the atmosphere.
b)
It puts carbon dioxide under the ground.
c)
It adds carbon dioxide to the atmosphere.
d)
It has no effect in the carbon cycle.
46.

Carbon is important for which molecules

a)

carbohydrates

b)

proteins

c)

lipids (fats)

d)

water

47.

What molecule is carbon first fixed into by plants in photosynthesis?

a)

glucose

b)

protein

c)

cellulose

d)

starch

48.

How is carbon transfered between organisms in a food chain?

a)

feeding and assimilation

b)

decomposition

c)

sedimentation

d)

respiration

49.

Which two groups of organisms breakdown dead and decaying matter?

a)

decomposers

b)

detritivores

c)

animals

d)

plants

50.

What can happen to the carbon dead organisms if they end up in an area with low oxygen?

a)

fossilise into fossil fuels

b)

decomposed

c)

respire

d)

fossilise into limestone

51.

Which is the correct balanced symbol equation for aerobic respiration?

a)

1

b)

2

c)

3

d)

4

52.

Which is the correct balanced symbol equation for photosynthesis?

a)

A

b)

B

c)

C

d)

D

53.

True or False: anaerobic respiration in humans releases CO2

a)

True

b)

False

54.

Which process removes carbon dioxide from the atmosphere?

a)

deforestation

b)

tree farms

c)

burning fossil fuels

d)

cellular respiration

55.

What is the greatest contributor to atmospheric carbon?

a)

burning garbage

b)

burning biomass

c)

transportation

d)

household usage

56.

Which form of carbon is the most potent greenhouse gas?

a)

CO2

b)

CH4

c)

C6H12O6

d)

C3H8O3

57.

What are two (2) ways to reduce the carbon emissions from passenger cars?

a)

Use less expensive gas

b)

Carpooling

c)

Public Transportation

d)

Driving only passenger cars

58.

What organisms form fossils?

a)

animals

b)

plants and animals

c)

CaCO2

d)

sedimentary rocks

59.

Which process(es) take carbon dioxide out of the atmosphere?

a)

respiration

b)

combustion

c)

photosynthesis

d)

feeding

60.

Which of the following is/are greenhouse gases?

a)

carbon dioxide

b)

water vapour

c)

methane

d)

nitrogen

61.

Which of the following is true of The Greenhouse Effect?

a)

It is a completely natural process

b)

It is an artificial process that has been naturally speeded up by humans

c)

It is a natural process that has been artificially speeded up by humans

d)

It is a completely artificial process

62.
What does NOT produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
63.
Carbon can be found in...
a)
The atmosphere
b)
Soil
c)
Fossil fuels
d)
All of the above
64.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
65.

C6H12O6 is also known as glucose (sugar). Where is it found?

a)

Plants

b)

Animals

c)

Both plants and animals

d)

Neither plants or animals

66.

When humans EXHALE, we release __________________.

a)

Oxygen

b)

Carbon Dioxide

c)

Nitrogen

d)

Water

67.
.What is the effect of deforestation on the carbon cycle? 
a)
 Increase in the amount of CO2 in the atmosphere  
b)
Decrease in the amount of CO2 in the atmosphere 
c)
Increase in the amount of photosynthesis 
d)
Deforestation has no impact on the carbon cycle 
68.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
69.
Why is the ocean important to the carbon cycle?
a)
It keeps sediment containing carbon underwater for millions of years
b)
The ocean gives out more carbon then it takes in (increases global warming)
c)
The ocean isn't important to the carbon cycle.
70.
What is happening at 1?
a)
respiration: releasing CO2
b)
decomposing CO2 in the soil
c)
photosynthesis: absorbing CO2
d)
turning CO2 from the atmosphere into organic molecules
71.

Which of the following is NOT true regarding oxygen?

a)

Oxygen gas is a natural occurring gas in the atmosphere.

b)

Oxygen gas is a byproduct of photosynthesis.

c)

Oxygen gas is a reactant in cellular respiration.

d)

Oxygen gas is the largest component of the atmosphere.

e)

Oxygen gas is a highly reactive molecule

72.

Using the graph, which of the following is the most likely cause of the recent trend noted for all three gases?

a)

Increased burning of wood and biomass for fuel

b)

Increasing number of livestock being raised

c)

Increased combustion of fossil fuels

d)

Global climate change

e)

More materials being disposed of in landfills

73.

The largest carbon pool is found in

a)

oceans

b)

the atmosphere

c)

sedimentary rock

d)

living organisms

e)

fossil fuels

74.

Which process most directly results in the storage of carbon as coal and oil over millions of years?

a)

Burning of fossil fuels

b)

Cellular respiration

c)

Decomposition

d)

Photosynthesis

75.

Which of the following is an example of a carbon sink?

a)

Deposition of organic matter on the deep ocean floor

b)

Clearing of trees in the Amazon forest

c)

Combustion of fossil fuels in power plants

d)

Decomposition of food waste by bacteria

e)

Nutrient uptake by the roots of grasses in a suburban lawn

76.

Identify the type of organisms that can take up carbon dioxide and convert it into organic compounds

a)

Consumers

b)

Detritivores

c)

Saprotrophs

d)

Autotrophs

77.

State the type of rock that consists mainly of calcium carbonate

(a)  

78.

What term describes the transfer of large quantities of carbon from place to another?

(a)  

79.

Identify the gas released through the breakdown of organic matter in anaerobic conditions by a group of prokaryotic archaeans

a)

Nitrogen

b)

Methane

c)

Carbon monoxide

d)

Sulphur dioxide

80.

Identify the acid that forms when carbon dioxide reacts with water

a)

Hydrochloric acid

b)

Sulphuric acid

c)

Carbonic acid

d)

Nitric acid

81.

Identify the process that is causing a large and increasing quantity of carbon dioxide into the atmosphere

a)

Combustion

b)

Photosynthesis

c)

Fossilization

d)

Methanogenesis

82.

Photosynthesis removes carbon from which reservoir?

a)

Geosphere

b)

Atmosphere

c)

Hydrosphere

d)

Biosphere

83.

Combustion adds carbon into which reservoir?

a)

Geosphere

b)

Biosphere

c)

Hydrosphere

d)

Atmosphere

84.

Which reservoir contains fossil fuels?

a)

Biosphere

b)

Geosphere

c)

Hydrosphere

d)

Atmosphere

85.

Which process adds carbon to the Geosphere?

a)

Photosynthesis

b)

Respiration

c)

Diffusion

d)

Decomposition

86.

Which of the following processes removes carbon from the Hydrosphere?

a)

Respiration

b)

Photosynthesis

c)

Dissolving

d)

Combustion

87.

Which is a true statement?

a)

Humans depend on oxygen, plants depend on carbon dioxide

b)

Plants produce carbon dioxide

c)

Humans depend on carbon dioxide, plants depend on oxygen

d)

Humans don't depend on plants for the air they need

88.

Choose all the items made out of carbon

a)

Food

b)

Animals

c)

Plants

d)

Tennis Racket

e)

Pretty much everything

89.

What do 'plants' do with the carbon they receive?

a)

They turn it into water

b)

They don't need carbon

c)

They turn it into food by photosynthesis

d)

They keep it forever

90.

How does carbon get from animals and back into the atmosphere? (CHOOSE ALL THAT APPLY)

a)

Respiration (breathing)

b)

After they die, they are broken down by decomposers

c)

Photosynthesis

d)

None of these

91.

How do animals get carbon?

a)

Photosynthesis

b)

They absorb it from the atmosphere

c)

The sun

d)

They eat other plants and animals

92.

What is CO2?

a)

Air

b)

Oxygen

c)

Carbon Dioxide

d)

Dioxide

93.

All things are made out of carbon or need carbon to live.

a)

True

b)

False

94.

What is causing global warming? (Choose All That Apply)

a)

The earth is too close to the sun

b)

There is too much carbon dioxide in the atmosphere

c)

Because we're running out of water

d)

Because we're cutting down all the trees and not planting more

95.

Why can't life live on Venus?

a)

Way too hot

b)

Too small

c)

Too far away

d)

Not enough gravity

96.

What made Venus way too hot for anything to live on it? (Choose All That Apply)

a)

Global Warming

b)

Too much Carbon Dioxide in the Atmosphere

c)

Too close to the sun

d)

It's just hot

97.

How is carbon recycled?

a)

The carbon cycle

b)

At the recycle plant

c)

It can't be recycled

d)

Through water

98.

Choose the things that take carbon dioxide (CO2) out of the air.

a)

Plants

b)

Water

c)

Trees

d)

Humans

99.

What are the top things that contribute to global warming? (Choose more than one)

a)

Cow Farts

b)

Burning Gas in cars and factories

c)

Cutting down Trees

d)

Solar Power

100.

What are some ways we can fight global warming? (Choose all that apply)

a)

Eat chicken instead of beef

b)

Plant trees

c)

Recycle

d)

Tell others to help fight

101.

Select the PRODUCTS of photosynthesis

a)

carbon monoxide

b)

H2O

c)

O2

d)

C6H12O6

e)

CO2

102.

This is the equation for respiration in eukaryotes. What is missing?

a)

ethanol

b)

lactic acid

c)

ATP

d)

ADP

103.

The formula 6CO2 + 6H2O + light/enzymes ---> C6H12O6 + 6O2 refers to...

a)

photosynthesis

b)

fermentation

c)

respiration

d)

oxidation

104.
What is the source of energy for photosynthesis?
a)
carbohydrates-chemical
b)
sunlight-radiant
c)
heat-thermal
d)
television-electrical
105.

Which process removes carbon dioxide from the atmosphere?

a)

deforestation

b)

tree farms

c)

burning fossil fuels

d)

cellular respiration

106.

What does the diagram indicate regarding the carbon cycle?

a)

Only terrestrial processes cycle carbon

b)

Only aquatic processes cycle carbon

c)

Terrestrial and aquatic processes are separate

d)

Both terrestrial and aquatic cycles operate together

107.

What is the equation for aerobic cellular respiration?

a)

C6H12O6 + 6O2 --> --> --> 6CO2 + 6H2O + ATP

b)

C6H12O6 + 6CO2 --> --> --> 6O2 + 6H2O

c)

6 CO2 + 6H2O --> --> --> 6O2 + C6H12O6

108.
Which organisms perform CELLULAR RESPIRATION?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
109.
Which of these is a product of photosynthesis and a requirement for cellular respiration?
a)
Glucose
b)
Carbon Dioxide
c)
Sunlight
d)
Water
110.
What products are produced during photosynthesis?
a)
Oxygen and glucose
b)
Carbon dioxide and ATP
c)
Oxygen and sunlight
d)
Glucose and Carbon dioxide
111.
Please select who performs cellular respiration: 
a)
Animals 
b)
Both animals and plants 
c)
plants 
112.

During cellular respiration, what is the direct source of the energy used in the cells of the heterotrophs (the deer, frog and ducks) in the ecosystem represented above?

a)

the atoms making up inorganic molecules

b)

the Sun

c)

enzymes

d)

food

113.

Which biological process is represented in the diagram?

a)

digestion

b)

photosynthesis

c)

respiration

d)

replication

114.
What are the reactants (what's needed) for photosynthesis?
a)
glucose and oxygen
b)
light, water, and carbon dioxide
c)

oxygen and carbon dioxide

d)

light and water

115.

If the plant population decreased, the amount of carbon in the atmosphere would _________.

a)

Stay the same

b)

Increase

c)

Decrease

116.

Which describes the relationship between plants and animals in the carbon cycle?

a)

Plants produce and release oxygen that animals need

b)

Plants produce and release carbon dioxide that animals need

c)

Animals produce and release oxygen that plants need

d)

Animals produce oxygen that plants turn into carbon dioxide

117.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
118.
Which of the following add carbon dioxide to the atmosphere?
a)
volcanoes
b)
combustion of fossil fuels
c)
animal and plant respiration
d)
all of these
119.
How does the carbon in grass become part of a lion?
a)
The lion eats the grass
b)
Carbon from grass doesn't end up in a lion. 
c)
The carbon ends up in the lion's food chain. 
d)
The lion breathes in carbon given out by the plant
120.

Which of the following light color is absorbed by plants?

a)

Red

b)

Green

c)

yellow

d)

Light green

121.

Pigment in green plants that capture the energy in sunlight is called __________

a)

Greenplasts

b)

chlorophyll

c)

stomata

d)

chloroplasts

122.

Which of the following is the correct equation for photosynthesis?

a)

CO2 + light + H2O ---> O2 + Sugar

b)

CO2 + sugar + water --> O2 + light

c)

O2 + light + water ---> sugar + CO2

d)

CO2 + O2 + light ---> sugar + water

123.

In the reaction methane + oxygen -------> carbon dioxide + water, the methane and oxygen are called _______________.

a)

reactants

b)

products

c)

neutrals

d)

energizers

124.

When plants use energy from the sun and convert carbon dioxide from the air and water into oxygen and glucose sugars, which two main spheres are interacting?

a)

Atmosphere - Biosphere

b)

Geosphere - Atmosphere

c)

Hydrosphere - Geosphere

d)

Geosphere - Biosphere

125.

When carbon dioxide dissolves from the air into the ocean - the interaction is between

a)

the atmosphere and hydrosphere

b)

the atmosphere and lithophere

c)

the atmosphere and atmosphere

d)

the atmosphere and biosphere

126.

Identify the type of organisms that can take up carbon dioxide and convert it into organic compounds

a)

Consumers

b)

Detritivores

c)

Saprotrophs

d)

Autotrophs

127.

State the type of rock that consists mainly of calcium carbonate

(a)  

128.

What deposits form due to the partially decomposed plant matter in acidic and anaerobic conditions?

a)

Peat

b)

Limestone

c)

Coral reefs

d)

Oil

129.

What term describes the transfer of large quantities of carbon from place to another?

(a)  

130.

Identify the process responsible for the greatest flux of carbon

a)

Combustion of fossil fuels

b)

Deforestation

c)

Ocean uptake

d)

Photosynthesis

131.

Identify the gas released through the breakdown of organic matter in anaerobic conditions by a group of prokaryotic archaeans

a)

Nitrogen

b)

Methane

c)

Carbon monoxide

d)

Sulphur dioxide

132.

Identify the process carried out by both heterotrophs and autotrophs that returns carbon dioxide to the atmosphere

a)

Fossilization

b)

Respiration

c)

Partial decomposition

d)

Photosynthesis

133.

State the term that describes a method of carbon storage in an ecosystem

(a)  

134.

Identify the acid that forms when carbon dioxide reacts with water

a)

Hydrochloric acid

b)

Sulphuric acid

c)

Carbonic acid

d)

Nitric acid

135.

Identify the process that is causing a large and increasing quantity of carbon dioxide into the atmosphere

a)

Combustion

b)

Photosynthesis

c)

Fossilization

d)

Methanogenesis

136.

Select the PRODUCTS of photosynthesis

a)

carbon monoxide

b)

H2O

c)

O2

d)

C6H12O6

e)

CO2

137.

This is the equation for respiration in eukaryotes. What is missing?

a)

ethanol

b)

lactic acid

c)

ATP

d)

ADP

138.

The formula 6CO2 + 6H2O + light/enzymes ---> C6H12O6 + 6O2 refers to...

a)

photosynthesis

b)

fermentation

c)

respiration

d)

oxidation

139.
What is the source of energy for photosynthesis?
a)
carbohydrates-chemical
b)
sunlight-radiant
c)
heat-thermal
d)
television-electrical
140.

Which process removes carbon dioxide from the atmosphere?

a)

deforestation

b)

tree farms

c)

burning fossil fuels

d)

cellular respiration

141.

What does the diagram indicate regarding the carbon cycle?

a)

Only terrestrial processes cycle carbon

b)

Only aquatic processes cycle carbon

c)

Terrestrial and aquatic processes are separate

d)

Both terrestrial and aquatic cycles operate together

142.

What is the equation for aerobic cellular respiration?

a)

C6H12O6 + 6O2 --> --> --> 6CO2 + 6H2O + ATP

b)

C6H12O6 + 6CO2 --> --> --> 6O2 + 6H2O

c)

6 CO2 + 6H2O --> --> --> 6O2 + C6H12O6

143.
Which organisms perform CELLULAR RESPIRATION?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
144.
Which of these is a product of photosynthesis and a requirement for cellular respiration?
a)
Glucose
b)
Carbon Dioxide
c)
Sunlight
d)
Water
145.
What products are produced during photosynthesis?
a)
Oxygen and glucose
b)
Carbon dioxide and ATP
c)
Oxygen and sunlight
d)
Glucose and Carbon dioxide
146.
Please select who performs cellular respiration: 
a)
Animals 
b)
Both animals and plants 
c)
plants 
147.

During cellular respiration, what is the direct source of the energy used in the cells of the heterotrophs (the deer, frog and ducks) in the ecosystem represented above?

a)

the atoms making up inorganic molecules

b)

the Sun

c)

enzymes

d)

food

148.

Which biological process is represented in the diagram?

a)

digestion

b)

photosynthesis

c)

respiration

d)

replication

149.
What are the reactants (what's needed) for photosynthesis?
a)
glucose and oxygen
b)
light, water, and carbon dioxide
c)

oxygen and carbon dioxide

d)

light and water

150.

If the plant population decreased, the amount of carbon in the atmosphere would _________.

a)

Stay the same

b)

Increase

c)

Decrease

151.

Which describes the relationship between plants and animals in the carbon cycle?

a)

Plants produce and release oxygen that animals need

b)

Plants produce and release carbon dioxide that animals need

c)

Animals produce and release oxygen that plants need

d)

Animals produce oxygen that plants turn into carbon dioxide

152.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
153.
Which of the following add carbon dioxide to the atmosphere?
a)
volcanoes
b)
combustion of fossil fuels
c)
animal and plant respiration
d)
all of these
154.
How does the carbon in grass become part of a lion?
a)
The lion eats the grass
b)
Carbon from grass doesn't end up in a lion. 
c)
The carbon ends up in the lion's food chain. 
d)
The lion breathes in carbon given out by the plant
155.

Which of the following light color is absorbed by plants?

a)

Red

b)

Green

c)

yellow

d)

Light green

156.

Pigment in green plants that capture the energy in sunlight is called __________

a)

Greenplasts

b)

chlorophyll

c)

stomata

d)

chloroplasts

157.

Which of the following is the correct equation for photosynthesis?

a)

CO2 + light + H2O ---> O2 + Sugar

b)

CO2 + sugar + water --> O2 + light

c)

O2 + light + water ---> sugar + CO2

d)

CO2 + O2 + light ---> sugar + water

158.

In the reaction methane + oxygen -------> carbon dioxide + water, the methane and oxygen are called _______________.

a)

reactants

b)

products

c)

neutrals

d)

energizers

159.

When plants use energy from the sun and convert carbon dioxide from the air and water into oxygen and glucose sugars, which two main spheres are interacting?

a)

Atmosphere - Biosphere

b)

Geosphere - Atmosphere

c)

Hydrosphere - Geosphere

d)

Geosphere - Biosphere

160.

When carbon dioxide dissolves from the air into the ocean - the interaction is between

a)

the atmosphere and hydrosphere

b)

the atmosphere and lithophere

c)

the atmosphere and atmosphere

d)

the atmosphere and biosphere

161.

Which process contributes carbon dioxide to the atmosphere?

a)

cellular respiration

b)

photosynthesis

c)

protein synthesis

d)

tree farms

162.

Which process removes carbon dioxide from the atmosphere?

a)

deforestation

b)

photosynthesis

c)

burning fossil fuels

d)

cellular respiration

163.

Which of the following is correct?

a)

There is as much carbon on earth as when it was formed

b)

Carbon is being created whenever it is recycled

c)

Carbon is lost every time it is recycled

d)

Carbon changes to different forms and is never recovered

164.
What does NOT produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
165.
TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.
a)
True
b)
False
166.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
167.
Carbon can be found in...
a)
The atmosphere
b)
Soil
c)
Fossil fuels
d)
All of the above
168.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
169.
Combustion is another word for __________.
a)
Transportation
b)
Respiration
c)
Fossil Fuels
d)
Burning
170.
Respiration is the process by which animals take in _____ and release _____. 
a)
photosynthesis, air
b)
carbon, oxygen
c)
oxygen
d)
oxygen, carbon dioxide
171.
What process occurs when coal (fossil fuel) is used for energy?
a)
Decomposition
b)
Combustion
c)
Pressurization 
d)
Respiration 
172.

C6H12O6 is also known as glucose (sugar). Where is it found?

a)

Plants

b)

Animals

c)

Both plants and animals

d)

Neither plants or animals

173.

When animals eat plants, the carbon that the plant contains is absorbed by the animals.

a)

True

b)

False

174.

How do animals get carbon?

a)

By eating plants and or other animals.

b)

They absorb it from the atmosphere.

c)

From the ground

d)

They do not get carbon from anywhere.

175.

What are fossil fuels made from?

a)

Plants and animals that are buried underground for millions of years.

b)

They absorb it from the atmosphere.

c)

Water

d)

Wind

176.

When humans EXHALE, we release __________________.

a)

Oxygen

b)

Carbon Dioxide

c)

Nitrogen

d)

Water

177.

What is CO2?

a)

Carbon Monoxide

b)

Carbon Trioxide

c)

Carbon Dioxide

d)

Oxygen

178.

Which of the following are fossil fuels?

a)

Coal, water, oil

b)

Oxygen, coal, oil

c)

Coal, Oil, Natural Gas

d)

None of the above

179.

What is the greatest contributor to atmospheric carbon?

a)

burning garbage

b)

burning biomass

c)

burning fossil fuel for transportation

d)

volcanic activity

180.

What are two (2) ways to reduce the carbon emissions from passenger cars?

a)

Use less expensive gas

b)

Carpooling

c)

Electric cars

d)

Driving only passenger cars

181.

How do fossils form?

a)

ancient biomass is converted to fossil fuels through cellular respiration

b)

ancient biomass is converted to fossil fuels through time, heat and pressure

c)

current biomass is under heat and pressure until they become fossils

d)

atmospheric carbon diffuses into the soil and forms fossil fuels

182.

What is a chemical compound (compuesto químico) that are used to maintain the life of plants and animals?

a)

Decomposition

b)

Combustion

c)

Biomolecule

183.

Which of these are organic molecules that contain carbon in living things?

a)

proteins

b)

lipids

c)

carbohydrates

d)

All of the above

184.

Which of these describes what is being conveyed by the infographic? Check ALL that apply

a)

In the northern hemisphere there are higher carbon dioxide levels in July to December

b)

In the northern hemisphere there are higher carbon dioxide levels in January to June

c)

There is seasonal variation in the amount of CO2 in the atmosphere in above North America

d)

Overall, carbon dioxide levels are increasing globally

185.

The ONLY way for carbon dioxide in the atmosphere can make it back into the biosphere is through what process?

a)

photosynthesis

b)

cellular respiration

c)

ocean gas exchange

d)

fossilization

186.

How do some animals contribute carbon to the geosphere?

a)

Shellfish build shells that can ultimately make limestone rock

b)

Worms do cellular respiration and release CO2

c)

Fossilized animals and plants can be burned for energy

d)

By doing photosynthesis

187.

What form of carbon exists in the atmosphere?

a)

organic molecules

b)

limestone rock

c)

carbon dioxide

d)

fossil fuels

188.

What form of carbon exists in the geosphere?

a)

organic molecules

b)

limestone rock

c)

carbon dioxide

d)

glucose

189.

The greenhouse effect is a natural process

a)

true

b)

false

190.

The greenhouse effect is caused by

a)

more heat arriving at the Earth from the sun

b)

the Earth releasing more heat at night

c)

gases in the air trapping heat released by the Earth

191.

Which of the gases is NOT a greenhouse gas?

a)

water vapour

b)

carbon monoxide

c)

carbon dioxide

d)

methane

192.
What happens to the temperature if more greenhouse gases are released into the atmosphere?
a)
Temperature goes up
b)
Temperature goes down
193.

Which is a negative human impact contributing to more CO2?

a)

Afforestation (planting more trees)

b)

Decomposition

c)

Recyling

d)

Burning Fossil fuels

194.

Photosynthesis _____ C02 levels in the atmosphere

a)

increase

b)

decrease

195.

Cellular Respiration _____ CO2 levels in the atmosphere

a)

increase

b)

decrease

196.

True or False: Increased CO2 levels decreases our global temperature

a)

True

b)

False

197.

Greenhouse gases such as CO2 increase temperature on our Earth because

a)

greenhouse gases trap heat

b)

greenhouse gases make holes in the atmosphere

c)

greenhouse gases gets rid of heat

d)

greenhouse gases don't do anything

198.

Droughts cause an increase of fires...

a)

True

b)

False

199.

(Increase or decrease)

As temperature ___ , forests get drier, which means the number of fires ____

(a)  

200.
All of the carbon in existence is continually recycled in the carbon cycle
a)
True
b)
False
201.
All of the carbon in existence is continually recycled in the carbon cycle
a)
True
b)
False
202.
How is the burning of fossil fuels related to global warming?
a)
Magic
b)
Fuels are hot
c)
Greenhouse effect
d)
Photosynthesis
203.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
204.

If the plant population decreased, the amount of carbon in the atmosphere would _________.

a)

Stay the same

b)

Increase

c)

Decrease

205.

Which is a true statement?

a)

Humans depend on oxygen, plants depend on carbon dioxide

b)

Plants produce carbon dioxide

c)

Humans depend on carbon dioxide, plants depend on oxygen

d)

Humans don't depend on plants for the air they need

206.
Which of the following statements is true of the phosphorus cycle?
a)
Phosphorus enters the atmosphere as phosphates.
b)
The phosphorus cycle utilizes the processes of erosion, and weathering.
c)
Phosphates are used in carbohydrate and glucose storage.
d)
The phosphorus cycle utilizes bacteria to breakdown phosphates and make them available for plants.
207.
What role do decomposers play in the phosphorous cycle?
a)
absorb phosphorous 
b)
release phosphorous into atmosphere
c)
return phosphorous into the soil
d)
combustion
208.

What is the original, and biggest reservoir of phosphorus on the planet?

a)

live plants and animals

b)

groundwater

c)

the atmosphere

d)

rocks

209.
_____ brings phosphorous into our waterways. .
a)
precipitation
b)

water runoff

c)
transpiration
d)
condensation
210.

Fertilizers spread on crops contain phosphates that can be washed into waterways.

a)

Surface runoff

b)

Sedimentation

c)

Uplift

d)

Fertilizer runoff

211.

What is the % of Nitrogen in the air?

a)

21%

b)

87%

c)

78%

d)

50%

212.
What happens when organisms die and decay? 
a)
Their bodies are lifted up
b)
Their nitrogen returns to the soil
c)
they keep their nitrogen
d)
They stay on earth forever
213.

What converts nitrogen gas into a usable form for plants and animals?

a)

bacteria

b)

rain

c)

fungi

d)

car exhaust

214.

How do animals get the nitrogen they need?

a)

From the air they breathe

b)

From the water they drink

c)

From the food they eat

d)

From the sun

215.
Organisms that play a role in the nitrogen cycle
a)
only plants
b)
only animals
c)
only bacteria
d)
plants, animals, & bacteria

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