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Carbon Cycle Diagram Answer Key

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Carbon Cycle Diagram Answer Key
Use the diagram of the carbon cycle to answer the questions.
1.
Which two letters represent reservoirs that are primarily carbon sinks?
a F and D
b I and C
c C and F
d D and I
2.
Which two letters represent reservoirs that are mainly carbon sources?
a F and D
b I and C
c C and F
d D and I
3.
Which is an example of a human activity that adds carbon dioxide to the
atmosphere?
a C
b D
c F
d K
4.
Which processes are shown by letters D and G?
a D is photosynthesis and G is respiration
b D is decomposition and G is evaporation
c D is respiration and G is decomposition
d D is evaporation and G is photosynthesis
5.
Which letter represents where carbon dioxide is exchanged in the lithosphere?
a A
b G
c I
d L
6.
The largest carbon reservoir is represented by which letter?
a A
b D
c I
d L
7.
If the average temperature of the body shown by I increased, it would
a release more carbon dioxide into the atmosphere.
b absorb more carbon dioxide from the atmosphere.
c not change the fluctuation rate of carbon dioxide with the atmosphere.
8.
In Earth's early history, which letter represents the primary source of carbon
dioxide into the atmosphere?
a A
b C
c F
d I
9.
If a forest fire was shown on a diagram, it would represent a
carbon
through the process of
.
a sink; decomposition
b sink; photosynthesis
c source; respiration
d source; combustion
10.
Which of the letters below represent something that will decrease atmospheric
carbon dioxide levels?
a C
b D
c F
d G
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