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Biogeochemical cycles: Carbon & Water

Total questions: 61

Worksheet time: 44mins

Name
Class
Date
1.
What does NOT produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
2.
Combustion is another word for __________.
a)
Transportation
b)
Respiration
c)
Fossil Fuels
d)
Burning
3.
TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.
a)
True
b)
False
4.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
5.
Carbon can be found in...
a)
The atmosphere
b)
Soil
c)
Fossil fuels
d)
All of the above
6.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
7.
What process occurs when coal (fossil fuel) is used for energy?
a)
Decomposition
b)
Combustion
c)
Pressurization 
d)
Respiration 
8.
Respiration is the process by which animals take in _____ and release _____. 
a)
photosynthesis, air
b)
carbon, oxygen
c)
oxygen
d)
oxygen, carbon dioxide
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.
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
11.
How is the burning of fossil fuels related to global warming?
a)
Magic
b)
Fuels are hot
c)
Greenhouse effect
d)
Photosynthesis
12.
Which of the following is an example of a decomposer?
a)
Owl
b)
Fish
c)
Tree
d)
Mushroom
13.

If the plant population decreased, the amount of total carbon on the planet would _________.

a)

Stay the same

b)

Increase

c)

Decrease

14.

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

15.

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

16.

How does carbon become locked inside the earth?

a)

Tree roots expel carbon into the soil as they grow.

b)

Humans use machines to pump carbon dioxide into large underground rocks.

c)

Rocks become richer in carbon as time goes by.

d)

The carbon-rich bodies of plants and animals decay into the earth after they die.

17.

How do carbon emissions lead to global warming?

a)

By trapping the sun's heat in the atmosphere.

b)

By causing very hot volcanic eruptions.

c)

Rocks become richer in carbon as time goes by.

d)

By increasing the amount of carbon in the earth's crust

18.
Which of the following is the best conclusion that can be made from this graph?
a)
atmospheric carbon dioxide levels have been decreasing since 1960
b)
Hawaii has a lot of carbon dioxide
c)
humans have been working hard to decrease carbon dioxide levels
d)
atmospheric carbon dioxide levels have increased steadily since 1960
19.

Which of the following have been changed or altered due to climate change ?

a)

droughts

b)

flooding

c)

melting of polar ice caps

d)

all of the above

20.

Which example is a form of precipitation?

a)

Dew

b)

Fog

c)

Frost

d)

Hail

21.

As a part of the water cycle, water from Earth's surface enters the clouds and finally falls back to the ground in the form of rain. What is the correct sequence of processes water undergoes?

a)

Evaporation, Condensation, Precipitation

b)

Precipitation, Condensation, Evaporation

c)

Condensation, Evaporation, Precipitation

d)

Evaporation, Precipitation, Condensation

22.

What would happen if the Sun is removed from the water cycle?

a)

The water cycle would not include precipitation but would continue with groundwater flow.

b)

The water cycle would no longer occur because the Sun provides the energy for evaporation and transpiration.

c)

The water cycle would no longer occur because the Sun provides energy for the formation of clouds.

d)

The water cycle would not include evaporation and transpiration but would continue with condensation.

23.

The image shows various stages in the water cycle. During which stage does water flow back towards the sea as runoff?

a)

W

b)

X

c)

Y

d)

Z

24.

On Earth, what process generates most of the water vapor?

a)

Condensation

b)

Evaporation

c)

Precipitation

d)

Transpiration

25.

Rain and snow are two different forms of precipitation that fall on Earth's surface. Which factor is responsible for there being different forms of precipitation?

a)

Evaporation

b)

Run-off

c)

Temperature

d)

Transpiration

26.

What is precipitation?

a)

Sweat from our bodies on hot days

b)

Warm rain but not cold snow or sleet

c)

Gas that we use in furnaces or ovens

d)

Any form of water that falls from the sky

27.

What is another name or synonym for the water cycle?

a)

Geologic cycle

b)

Hydrologic cycle

c)

Geosphere

d)

Carbon cycle

28.

What is the energy source that drives the water cycle?

a)

The Moon

b)

The heat from our home in the winter all around the world

c)

The Sun

d)

The heat generated solely from the core of the earth

29.

What are formed when water vapor condenses?

a)

Clouds

b)

Mountains

c)

Transpiration

d)

Valleys

30.

The movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat. ____________________

a)

Evaporation

b)

Convection

c)

Precipitation

d)

Transpiration

31.
What is it called when plants give off water vapor as a waste product?
a)
condensation
b)
evaporation
c)
sublimation
d)
transpiration
32.

Water in its gas form is called ____________________,

a)

water vapor

b)

precipitation

c)

ice

d)

air

33.
The atmosphere, the ground, and also bodies of water are all heated by the Sun's energy. How does this energy reach Earth?
a)
radiation
b)
conduction
c)
convection
d)
gravity
34.
Warm, less dense air (including vapor) rises in the atmosphere. Cool, more dense air (including vapor) sinks. This transfer is . . . .
a)
convection
b)
conduction
c)
radiation
d)
gravity
35.

What are the three methods of heat transfer?

a)

conduction

b)

convection

c)

friction

d)

radiation

36.

Process of changing a liquid to a solid

a)

boiling

b)

freezing

c)

condensation

d)

melting

37.

Hot air rising is an example of

a)

Conduction

b)

Convection

c)

Radiation

d)

Friction

38.

State of matter where particles are tightly packed and move very little.

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

39.

State of matter in which particles are free to flow over each other and take the shape of their container

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

40.

Measure of the average kinetic energy of a substance

a)

Total Thermal Energy

b)

Heat Exchange

c)

Temperature

d)

Total Internal Energy

41.

The process of changing a gas to a liquid

a)

Freezing

b)

Boiling

c)

Condensation

d)

Melting

42.

The sun and a campfire are good examples of _________________________________, the

transfer of heat through electromagnetic rays.

a)

Conduction

b)

Convection

c)

Radiation

43.

Which compound does NOT contain carbon atoms?

a)

carbon dioxide

b)

ammonium

c)

calcium carbonate

d)

methane

44.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
45.
How do living organisms return carbon to the atmosphere in the carbon cycle?
a)
respiration and photosynthesis
b)
 decomposition and respiration
46.
In the carbon cycle, producers take in the gas __
a)
carbon dioxide
b)
oxygen
c)
nitrogen
d)
carbon monoxide
47.
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
48.
If the plant population decreased, the amount of carbon would _________.
a)
Stay the same
b)
Increase
c)
Decrease
49.

Which statement is correct?

a)

matter cycles; energy cycles

b)

matter cycles; energy disintengrates

c)

matter cycles; energy converts

d)

matter converts; energy cycles

50.

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

51.

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

52.
Carbon can be found in...
a)
The atmosphere
b)
Soil
c)
Fossil fuels
d)
All of the above
53.
What are the end products of cellular respiration? 
a)
Carbon dioxide, water and ATP energy
b)
Carbon dioxide, glucose and water
c)
Oxygen, glucose and ATP energy
d)
Water, Carbon dioxide and Oxygen
54.

___________________ is the process by which water changes from a liquid to a gas or vapor. __________________ is the primary pathway that water moves from the liquid state back into the water cycle as atmospheric water

a)

Transpiration

b)

Deposition

c)

Percolation

d)

Evaporation

55.

____________________ is the process by which water on the ground surface enters the soil. ________________ rate in soil science is a measure of the rate at which soil is able to absorb rainfall or irrigation.

a)

Infiltration

b)

Percolation

c)

Deposition

d)

Condensation

56.

_____________________ is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail. It is the primary connection in the water cycle that provides for the delivery of atmospheric water to the Earth. Most ________________ falls as rain.

a)

Snowmelt runoff

b)

Precipitation

c)

Surface runoff

d)

Evaporation

57.

__________________ is the process by which water vapor in the air is changed into liquid water. ________________ is crucial to the water cycle because it is responsible for the formation of clouds.

a)

Transportation

b)

Percolation

c)

Condensation

d)

Plant Uptake

58.

__________________ is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere. ______________ is essentially evaporation of water from plant leaves.

a)

Transpiration

b)

Percolation

c)

Infiltration

d)

Plant Uptake

59.

Water that flows across the land and enters rivers and streams. It eventually flows into lakes and the ocean.

a)

Snowmelt runoff

b)

Surface Runoff

c)

Deposition

d)

Precipitation

60.
Which of these is an example of precipitation?
a)
snow
b)
air
c)
clouds
d)
vapor
61.
Which best explains why runoff is important?
a)
It returns water to other locations on Earth
b)
It increases the chance of flooding
c)
It makes evaporation occur faster
d)
It increases condensation