Carbon Cycle
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The following questions relate to Fig. 1 below. Figure 1: A cartoon of the global carbon cycle. Pools (in black) are gigatons (1Gt = 1x109 Tons) of carbon, and fluxes (in purple) are Gt carbon per year. Illustration courtesy NASA Earth Science Enterprise.
image © NASA
image © NASA
A.
What is the process by which carbon is released into the atmosphere from cars, homes, and factories?
- respiration
- transpiration
- photosynthesis
- combustion
B.
Which reservoir contains the most carbon?
- atmosphere
- deep oceans
- vegetation
- sediments