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Biomes and Biogeochemical Cycles

Total questions: 90

Worksheet time: 2hrs 37mins

Name
Class
Date
1.
What is this a picture of?
a)
Nitrogen cycle
b)
carbon cycle
c)
water cycle
d)
plant cycle
2.
How does N2 get into soil?
a)
N2 diffuses into the pore spaces between the soil particles
b)
Legumes pull it in.
c)
gravity.  It's not just a good idea, it's the Law.
d)
1st Law of Thermodynamics
3.
How does carbon dioxide leave the atmosphere?
a)
Through transpiration
b)
Through photosynthesis
c)
Through factory emission
d)
Sunlight
4.
Which process takes Carbon Dioxide from the air and converts it into a form of carbon used by living things?
a)
Precipitation
b)
Photosynthesis
c)
Respiration
d)
Bioremdiation
5.
These gases, such as carbon dioxide, trap heat in the Earth's atmosphere causing global warming
a)
Global warming gases
b)
Hot House gases
c)
Green House gases
d)
Thermal pollution
6.
Respiration is the process by which ____________ is consumed and _______________ is produced.
a)
Carbon, Oxygen
b)
Oxygen, Carbon dioxide
c)
H20, oxygen
d)
Carbon, H2O
7.
Growing legumes such as alfalfa or soy beans increases
a)
denitrification
b)
nitrogen fixation
c)
ammonification
d)
ammonium oxidation
8.
Which of the following describes the role of nitrogen-fixing bacteria in the nitrogen cycle? Nitrogen-fixing bacteria convert
a)
nitrates intro nitrogen gas
b)
ammonia into proteins
c)
nitrogen gas into ammonia
d)
proteins into nitrates
9.
Organisms use nitrogen to form
a)
carbohydrates and lipids
b)
proteins and lipids
c)
lipids and nucleic acids
d)
proteins and nucleic acids
10.
When nitrogen gas is turned in to a form that plants and animals can use is called 
a)
Combustion
b)
Photosynthesis
c)
Decomposition
d)
Nitrogen Fixation
11.
What happens when organisms die and decay? 
a)
Their nitrogen moves to the air as nitrogen gas
b)
Their nitrogen returns to the soil as ammonium
c)
Their nitrogen becomes tapped in clay and is unusable
d)
They stay on earth forever
12.
Carbon dioxide is added to the atmosphere by
a)
Burning fossil fuels 
b)
Cellular respiration
c)
Decomposing organic matter
d)
All answers are correct
13.
If the atmosphere is 78% N2, why can't we just get our nitrogen by breathing?
a)

We have no mechanism (enzymes) to break the triple bond of nitrogen between the atoms.

b)
Our lungs would be damaged by the N2.
c)
We need Oxygen for cellular respiration.
d)
The legumes take it up first.
14.

Eutrophication is a man made source, too much

a)

oxygen in the atmosphere

b)

phosphorus in the geopsphere

c)

Nitrates in the hydrosphere

d)

carbon in the atmosphere

15.

Photosynthesis is an important part of the ______ cycle

a)

Carbon

b)

Water

c)

Phosphorus

d)

Nitrogen

16.

In photosynthesis, plants use __________ to make _________

a)

sugar and CO2; oxygen

b)

water, sun, and CO2; oxygen and sugar

c)

nitrogen and water; CO2 and sugar

d)

water and minerals; sugar and oxygen

17.

Decomposition is part of all cycles except _______

a)

the carbon cycle

b)

the nitrogen cycle

c)

the water cycle

d)

the phosphorus cycle

18.

The factor that causes the most changes to the cycles is ______

a)

weather

b)

humans

c)

temperature

d)

time

19.

Carbon dioxide is _______________

a)

a greenhouse gas

b)

released from rocks through weathering

c)

used as a fertilizer

d)

what plants make

20.

Coal, natural gas, and oil are examples of _________

a)

the carbon cycle

b)

products of photosynthesis

c)

good fuels for barbecues

d)

fossil fuels

21.

In the nitrogen cycle, the important work is done by ________

a)

fungi

b)

insects

c)

bacteria

d)

worms

22.

Too much nitrogen can lead to _____ (choose all that apply)

a)

increased cancer risk

b)

acid rain

c)

increase in greenhouse gases

d)

algae bloom

23.

In evaporation, water _______

a)

turns from a liquid state to vapor (gas)

b)

falls from the sky like rain or snow

c)

forms clouds

d)

gets locked into ice

24.

Snow, sleet, ice, hail, and rain are examples of _____

a)

evaporation

b)

condensation

c)

precipitation

d)

ground water

25.

About 5% of the earth's water is freshwater

a)

true

b)

false

26.

Evaporation of water from plant leaves is called _________

a)

transpiration

b)

respiration

c)

digestion

d)

oxidation

27.

Water drops forming on the outside of a glass is an example of

a)

precipitation

b)

nitrification

c)

decomposition

d)

condensation

28.
What is the most abundant gas in the atmosphere?
a)
hydrogen
b)
oxygen
c)
helium
d)
nitrogen
29.
Which is NOT a process of the water cycle?
a)
precipitation
b)
freezing
c)
transpiration
d)
evaporation
30.
Why do living things need nitrogen?
a)
To get energy
b)
To make amino acids
c)
To make proteins
d)
To make proteins AND amino acids
31.
What happens during the process of nitrogen-fixation?
a)
Nitrogen compounds turn into free nitrogen
b)
Free nitrogen turns into nitrogen compounds
32.
What happens during the process of denitrification?
a)
Nitrogen compounds turn into free nitrogen
b)
Free nitrogen turns into nitrogen compounds
33.
What is the only process that removes carbon from the atmosphere?
a)
combustion
b)
cellular respiration
c)
photosynthesis
d)
decomposition
34.
What 2 things does a plant make during photosynthesis?
a)
oxygen, glucose
b)
glucose, carbon dioxide
c)
useable energy, glucose
d)
oxygen, carbon dioxide
35.

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

36.
Identify the cycle pictured.
a)
The Water cycle
b)
The Carbon cycle
c)
The Nitrogen cycle
d)
The Phosphorus cycle
37.

What process is part of the hydrological (water) cycle?

a)

transpiration

b)

nitrification

c)

combustion

d)

sedimentation

38.

Coal, natural gas, and oil are examples of _________

a)

the carbon cycle

b)

products of photosynthesis

c)

good fuels for barbecues

d)

fossil fuels

39.

When water is heated in the ocean by the sun and turns into water vapor

a)

Condensation

b)

Evaporation

c)

Transpiration

40.

Forms of precipitation are

a)

only sleet and snow

b)

rain, sleet, snow, and hail

c)

only dew, mists, and rain

41.

When water flows back into the ocean it is called

a)

run-off

b)

transpiration

c)

precipitation

42.

After condensation, the droplets of water in the clouds fall to Earth in different forms...

a)

precipitation

b)

condensation

c)

evaporation

43.

When water vapor is cooled and forms droplets...

a)

condensation

b)

evaporation

c)

transpiration

44.

The water cycle has not start or end

a)

true

b)

false

45.

When water turns into a gas...

a)

condensation

b)

evaporation

c)

precipitation

46.

You might see this on the outside of a cold glass when it is hot outside.

a)

Evaporation

b)

Precipitation

c)

Collection

d)

Condensation

47.
What is A?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
48.
What is B?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
49.
What is      D?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
50.

Runoff means...

a)

water vapor cooling to form clouds

b)

water running downhill

c)

water falling from the sky

d)

water heating up and rising as gas

51.

During evaporation water changes from ...

a)

water vapor (gas) to liquid

b)

liquid to water vapor (gas)

c)

water vapor (gas) to solid ice

52.

During condensation water changes from ....

a)

solid ice to liquid water

b)

liquid water to water vapor (gas)

c)

water vapor (gas) to liquid water drops

53.
What does NOT produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
54.
Combustion is another word for __________.
a)
Transportation
b)
Respiration
c)
Fossil Fuels
d)
Burning
55.
TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.
a)
True
b)
False
56.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
57.

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

a)

Stay the same

b)

Increase

c)

Decrease

58.

The process in which nitrogen circulates and is recycled is called

a)

The nitrogen cycle

b)

The carbon cycle

c)

The water cycle

d)

The phosphorus cycle

59.

Organisms that need nitrogen to survive.

a)

only plants

b)

only animals

c)

only bacteria

d)

all living things

60.

How is nitrogen "fixed" into a usable form for plants?

a)

Through action of bacteria only

b)

Through lightning only

c)

Through action of bacteria and lightning

d)

Through photosynthesis

61.

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

62.

What process occurs when dead plant and animal matter decomposes and nitrogen is released back into the atmosphere?

a)

Assimilation

b)

Fixation

c)

Ammonification

d)

Denitrification

63.

Plants and animals cannot use nitrogen directly from the air.

a)

True

b)

False

64.

Bacteria fix nitrogen from the atmosphere into a form plants can use.

a)

True

b)

False

65.
Which biome covers most of the land mass near the Earth's equator?
a)
tundra
b)
desert
c)
grassland
d)
tropical rainforest
66.
Which biome is characterized by low temperatures and low amounts of rainfall?
a)
tundra
b)
desert
c)
temperate deciduous forest
d)
tropical rain forest
67.
Which biome, because of its climate, has the largest number of species of plants and animals?
a)
tundra
b)
desert
c)
tropical rainforest
d)
pine forest
68.
Which type of trees is found in a temperate forest?
a)
deciduous
b)
evergreen
c)
ginko
d)
palm
69.
Which major biome is home to cacti, mesquite, white thorn, pack rats, small reptiles, and coyotes?
a)
desert
b)
taiga
c)
tundra
d)
grassland
70.
Which biome contains large populations of grazing herbivores, few species of birds, and deep, rich soil?
a)
taiga
b)
tundra
c)
deciduous forest
d)
grassland
71.
Which biome is MOST LIKE the "desert" in terms of precipitation?
a)
tropical rainforest
b)
temperate deciduous forest
c)
tundra
d)
coniferous forest
72.
A ________ is a forest biome consisting mostly of cone-bearing evergreen trees
a)
desert
b)
temperate deciduous forest
c)
taiga
d)
tundra
73.
What are the key features of the Tundra?
a)
cold winter, thin acidic soil, evergreen trees
b)
treeless, permafrost, cold dark winters
c)
ong cool summers, short dark winters, migrating animals
d)
many evergreen trees, short moist summers, long snowy winters
74.

Plants and animals in the tundra must be able to adapt to the extremely ___________ weather

a)

small

b)

cold

c)

perennials

d)

shallow

75.
Very little sun reaches this part of the rainforest.
a)
equal
b)
earth
c)
floor
d)
carnivorous 
76.

Many of the animals in the desert are ______________ to avoid the extreme heat during the day.

a)

cacti

b)

chia

c)

water

d)

nocturnal

77.

The two main abiotic factors that determine where organisms live are

a)

temperature and latitude

b)

altitude and precipitation

c)

temperature and precipitation

d)

soil type and precipitation

78.
As altitude or latitude increase, temperature ______
a)
stays the same
b)
rises
c)
drops
d)
drops, then rises
79.
What are the two main factors that determine the climate of an area?
a)
precipitation and humidity
b)
temperature and air pressure
c)
wind conditions and humidity
d)
temperature and precipitation
80.
Which two biomes have the least precipitation?
a)
tropical rain forest and temperate grasslan
b)
savanna and tropical dry forest
c)
tundra and desert
d)
boreal forest and temperate woodland
81.

Energy flows through an ecosystem and is dissipated as heat, but chemical elements are recycled.

a)

TRUE

b)

FALSE

82.

A biogeochemical cycle is the way in which an element or compound move between its various living and nonliving forms and locations in the biosphere.

a)

TRUE

b)

FALSE

83.

Name 3 of the most important biogeochemical cycles (in chronological order seen in class)

(a)  

84.

This is found in all organic macromolecules and is also key component of fossil fuels.

(a)  

85.

All biogeochemical cycles happen in isolation.

a)

TRUE

b)

FALSE

86.

This is a groundwater reservoir often tapped by wells.

(a)  

87.

Carbon dioxide from the atmosphere is taken up by prokaryotes and used to make organic molecules, which travel through food chains.

a)

TRUE

b)

FALSE

88.

Bacteria play a key role in the nitrogen cycle.

a)

TRUE

b)

FALSE

89.

Example of a nitrogen fixing prokaryote:

a)

cyanobacteria

b)

rhizobium

c)

azotobacter

d)

All three answers are correct.

90.

When fertilizers containing nitrogen and phosphorus are carried in runoff to lakes and rivers, plants die.

a)

TRUE

b)

FALSE

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