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WorksheetsCarbon Cycle Review: Standard
Total questions: 15
Worksheet time: 11mins
Name
Class
Date
1.
What is happening in step
1?
1?
a)
Animals are decomposing and realizing carbon into the soil.
b)
Animals are releasing energy into the environment and storing carbon.
c)
Animals are turning carbon dioxide from the atmosphere into organic molecules.
d)
Animals are breaking down organic molecules and releasing carbon dioxide into the atmosphere.
2.
What number represents combustion in this diagram?
a)
1
b)
2
c)
3
d)
4
3.
What number would represent photosynthesis in this
diagram?
diagram?
a)
1
b)
2
c)
3
d)
4
4.
Carbon is stored in many areas in the carbon cycle. Select the one location carbon is NOT stored.
a)
fossil fuels
b)
water
c)
atmosphere
d)
sunlight
5.
How is combustion similar to cellular respiration?
a)
It can occur only in living things.
b)
It removes energy from the environment.
c)
It increases the amount of carbon dioxide in the environment.
d)
It needs glucose and oxygen to occur.
6.
Animals decomposing into the ground increases the amount of carbon in the soil.
a)
True
b)
False
7.
Photosynthesis takes carbon out of ....?
a)
soil
b)
water and atmosphere
c)
decaying animals
d)
fossil fuels
8.
Deforestation can hurt the carbon cycle
a)
True
b)
False
9.
How does the concentration of carbon dioxide in the atmosphere affect climate?
a)
As carbon dioxide concentrations increase, temperatures increase
b)
As carbon dioxide concentration increase, temperatures decrease.
c)
Carbon dioxide concentrations have no affect on climate
d)
As carbon dioxide concentrations increase, temperatures become more random.
10.
According to most scientists, activities like fossil fuel burning and deforestation have affected the global carbon cycle.
a)
True
b)
False
11.
Which of the following processes does NOT add carbon to the atmosphere?
a)
volcanic eruptions
b)
respiration
c)
weathering of limestone
d)
subduction
12.
Carbon dioxide is easily dissolved in water.
a)
True
b)
False
13.
All of the carbon in existence is continually recycled in the carbon cycle
a)
True
b)
False
14.
How does carbon get into the soil?
a)
when a human dies
b)
When a plant dies
c)
when an animal dies
d)
all of the above
15.
Carbon exist in many forms on Earth.
a)
True
b)
False
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