Which of the following is NOT part of the carbon cycle?
A
Respiration in animals
B
Decomposition of organic matter
C
Nitrogen fixation by bacteria
D
Photosynthesis in plants
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검증된 단계별 안내
1
Step 1: Begin by understanding the carbon cycle. The carbon cycle is the process by which carbon is exchanged among the atmosphere, organisms, soil, and oceans. It includes processes such as photosynthesis, respiration, decomposition, and combustion.
Step 2: Analyze each option provided in the question to determine whether it is part of the carbon cycle. For example, respiration in animals releases carbon dioxide into the atmosphere, which is a key component of the carbon cycle.
Step 3: Consider decomposition of organic matter. Decomposition breaks down dead organisms, releasing carbon back into the soil and atmosphere, which is also part of the carbon cycle.
Step 4: Evaluate photosynthesis in plants. During photosynthesis, plants absorb carbon dioxide from the atmosphere and convert it into glucose, storing carbon in organic molecules. This is a central process in the carbon cycle.
Step 5: Examine nitrogen fixation by bacteria. Nitrogen fixation is a process where bacteria convert nitrogen gas into ammonia, which is part of the nitrogen cycle, not the carbon cycle. Therefore, this option is NOT part of the carbon cycle.