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Biogeochemical Cycles

Total questions: 52

Worksheet time: 1hrs 9mins

Name
Class
Date
1.
Which is NOT a process of the water cycle?
a)
precipitation
b)
freezing
c)
transpiration
d)
evaporation
2.
The process of plants losing water through their leaves is called ____.
a)
condensation
b)
evaporation
c)
transpiration
d)
exhaling
3.

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

4.
What is the only process that removes carbon from the atmosphere?
a)
combustion
b)
cellular respiration
c)
photosynthesis
d)
decomposition
5.
Where is carbon stored in the environment?
a)
Fossil fuels
b)
Wood of trees
c)
Calcium carbonate (shells and bones)
d)
All of the above
6.
A particular golf course is using large amounts of nitrogen fertilizer. What process could move this nitrogen into a local stream?
a)
volatilization
b)
nitrogen fixation
c)
runoff
d)
ammonification
7.
What converts nitrogen into a useable form for plants and animals?
a)
bacteria
b)
fungi
c)
rain
8.
Which nutrient is not cycled through the atmosphere?
a)
carbon
b)
nitrogen
c)
phosphorous
d)
water
9.
This is released by the weathering of rocks.
a)
Carbon
b)
Oxygen
c)
Phosphorus
d)
Nitrogen
10.

What cycle are fossil fuels part of ?

a)

carbon

b)

oxygen

c)

nitrogen

d)

phosphorus

11.

What is the largest reservoir for water?

a)

the ocean

b)

rocks and minerals

c)

the atmosphere

d)

glaciers

12.

Where is the largest reservoir for the phosphorus cycle?

a)

rocks and minerals

b)

the ocean

c)

the atmopshere

d)

fossil fuels

13.

What is the largest reservoir for nitrogen?

a)

the ocean

b)

rocks and minerals

c)

the atmosphere

d)

bacteria

14.
Carbon dioxide is added to the atmosphere by
a)
Burning fossil fuels 
b)
Cellular respiration
c)
Decomposing organic matter
d)
All answers are correct
15.
These gases, such as carbon dioxide, trap heat in the Earth's atmosphere causing global warming
a)

Global Warming Gases

b)

Hothouse Gases

c)

Greenhouse Gases

d)

Thermal Pollution

16.
What converts nitrogen into a useable form for plants and animals?
a)
bacteria
b)
fungi
c)
rain
17.

In which process are nitrate ions and nitrite ions converted into nitrous oxide gas and nitrogen gas?

a)

Nitrification

b)

Denitrification

c)

Assimilation

d)

Ammonification

e)

Nitrogen fixation

18.

The major reservoir for sulfur is ___

a)

Rocks

b)

Atmosphere

c)

Vegetation

d)

Water

19.

In the Nitrogen cycle, what is one Natural way that Nitrogen gets into our soil?

a)

Fertilizers

b)

Human Waste through septic tanks

c)

Decomposing animals

d)

Industrial waste

20.

Producers rely on _____ to release chemical energy and consumers rely on ____ to release chemical energy.

a)

Cellular Respiration; photosynthesis

b)

Cellular Respiration; cellular respiration

c)

photosynthesis; cellular respiration

d)

photosynthesis; photosynthesis

21.

Producers rely on _____ to release chemical energy and consumers rely on ____ to release chemical energy.

a)

Cellular Respiration; photosynthesis

b)

Cellular Respiration; cellular respiration

c)

photosynthesis; cellular respiration

d)

photosynthesis; photosynthesis

22.

Which of the following biogeochemical cycles does not have an atmospheric phase?

a)

Hydrolic Cycle

b)

Nitrogen Cycle

c)

Sulfur Cycle

d)

Carbon Cycle

e)

Phosphorous Cycle

23.

Which of the following is true of carbon as it cycles in nature?

a)

Carbon compounds rarely exist in the gaseous state

b)

Carbon dioxide is released during photosynthesis.

c)

Carbon sinks include forests and oceans.

24.

Which biome has warm temperatures, high precipitation, and little seasonal variation due to its location near the equator?

a)

Boreal forest

b)

Tropical rainforest

c)

Woodland/shrubland

d)

Subtropical desert

25.

Which of the following are examples of wetlands?

a)

swamps

b)

marshes

c)

bogs

d)

all of these are correct

26.

Terrestrial biomes are defined by ____ and ____ variables.

a)

temperature; precipitation

b)

temperature; animals

c)

precipitation; plants

d)

animals; plants

27.

Which biome is characterized by the presence of permafrost?

a)

temperate seasonal forest

b)

woodland/shrubland

c)

tundra

d)

boreal forest

28.

What factors are used to classify a biome?

a)

average temperature

b)

average precipitation

c)

distinctive plants adapted to area

d)

all of these are correct

29.

In which biome would you expect to find an area with an average temperature of 4oC and 50 cm of precipitation annually?

a)

Tundra

b)

Boreal forest

c)

Temperate grassland/cold desert

d)

Woodland/shrubland

30.

The cattle egret follows herds of cattle and eat the insects that the cattle stir up as they move through the grassland. The cattle appear to be unaffected by the egrets. This is a _____ type of relationship.

a)

Commensalism

b)

Parasitism

c)

Symbiotic

d)

Mutualism

31.

A tapeworm lives in the small intestines where it feeds and grows, robbing the human of essential nutrients. This is a _____ type of relationship.

a)

Commensalism

b)

Parasitism

c)

Symbiotic

d)

Mutualism

32.

Place the ecology levels of organization in proper order (smallest to largest)

a)

organism > population > community > ecosystem > biosphere

b)

community > organism > ecosystem > biosphere > population

c)

organism > community > biosphere > population > ecosystem

d)

population > biosphere > ecosystem > community > organism

33.

The two main processes that return water to the atmosphere are...

a)

Evaporation & Transpiration

b)

Precipitation & Transpiration

c)

Precipitation & Evaporation

34.

Which of the cycles is considered to be the SLOWEST?

a)

Carbon

b)

Water

c)

Nitrogen

d)

Phosphorus

35.

Denitrification is...

a)

the conversion of waste into ammonium

b)

the conversion of atmospheric nitrogen into usable nitrogen

c)

the conversion of soil nitrogen back into atmospheric nitrogen

d)

the conversion of ammonium to nitrites

36.

The process of atmospheric nitrogen being converted into a usable form is called...

a)

nitrogen fixation

b)

nitrification

c)

ammonification

d)

assimilation

37.

_______ increases the amount of atmospheric CO2 while ______ decreases the amount of atmospheric CO2.

a)

Cellular Respiration, Photosynthesis

b)

Photosynthesis, Burning of Fossil Fuels

c)

Burning of Fossil Fuels, Photosynthesis

d)

Photosynthesis, Cellular Respiration

38.

Click on the image to enlarge it. Which biome is being shown in the climatogram?

a)

Desert

b)

Tundra

c)

Tropical Rainforest

d)

Temperate Seasonal Forest

39.

Click on the image to enlarge it. Which biome is being shown in the climatogram?

a)

Desert

b)

Tundra

c)

Tropical Rainforest

d)

Temperate Seasonal Forest

40.

Cows eat grass to obtain energy. This is an example of...

a)

Competition

b)

Predation

c)

Mutualism

d)

Commensalism

41.

Barnacles attach themselves to the skin of whales. This allows them to filter feed as the whale swims. The whale is unaffected. This is an example of...

a)

Competition

b)

Predation

c)

Mutualism

d)

Commensalism

42.

Hyenas and vultures both scavenge prey from apex predators. This is an example of...

a)

Competition

b)

Predation

c)

Mutualism

d)

Commensalism

43.

Which of the following statements is true of aquatic biomes?

a)

Freshwater and marine biomes are evenly distributed on Earth.

b)

Freshwater biomes are a vital source of drinking water.

c)

Freshwater biomes supply a greater portion of Earth’s oxygen than marine biomes

d)

Marine biomes include streams, rivers, ponds, and lakes.

44.

Two bird species coexist by feeding on the same type of insects in different parts of a tree. One bird species hunts insects near the top of the tree. The other bird species hunts insects near the base of the tree. Which of the following concepts is demonstrated between the two bird species?

a)

predator/prey

b)

mutualism

c)

resource partitioning

d)

parasitism

45.

Resource partitioning

a)

occurs in mutualisms.

b)

can occur through morphological differences between competing species.

c)

can cause the extinction of a competing species.

d)

is not the result of behavioral changes

46.

Which one of these does not add CO2 to the atmosphere?

a)

cooking with gas

b)

planting trees

c)

burning wood

d)

riding in a bus

47.

The largest reservoir of nitrogen is the:

a)

Oceans

b)

Rivers

c)

Rock, Lithosphere, & Land

d)

Atmosphere

48.

What is the role of decomposers in an Ecosystem?

a)

They recycle matter and nutrients to form fossil fuels.

b)

They are burning and releasing carbon dioxide into the environment.

c)

Decomposers are responsible for turning oxygen into carbon dioxide.

d)

They recycle energy back to the sun.

49.
_________ is the amount of salt dissolved in water.
a)
Temperature
b)
Salinity
c)
Nutrients
d)
Pressure
50.
These are partially enclosed body of water where seawater is mixed with fresh water.
a)
Stream
b)
Estuary
c)
Watershed
d)
Swamp
51.
Phytoplankton live near the surface of the water because
a)
they eat krill which only are abundant near the surface of the water
b)
there are less predators near the surface of the ocean
c)
sunlight cannot reach great depths and they need it for photosynthesis
d)
they are blown there from the land and end up floating on the surface of the water until they are consumed
52.
Fresh water referrers to which of the following
a)
oceans, rivers, lakes
b)
ponds, rivers, oceans
c)
lakes, ponds,  streams
d)
streams, lakes, oceans

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