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Type: Multiple-Choice
Category: Biogeochemical Cycles
Level: Grade 11
Score: 1
Tags: carbon cycle
Author: KimberlySalas
Last Modified: 6 years ago

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Biogeochemical Cycles Question

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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

Grade 11 Biogeochemical Cycles

What is the process by which carbon is released into the atmosphere from cars, homes, and factories?
  1. respiration
  2. transpiration
  3. photosynthesis
  4. combustion