Question

in the carbon cycle, which process is responsible for releasing carbon dioxide back into the atmosphere?
a. evaporation
b. nitrogen fixatin
c. photosynthesis
d. respiration

which of the following statements about the carbon cycle is accurate?
a. decomposition releases carbon dioxide back into the environment
b. the carbon cycle does not interact with other cycles
c. carbon is not involved in any biological processes
d. carbon is only stored in the atmosphere

which cycle involves the movement of water between the atmosphere, land, and oceans?
a. water cycle
b. carbon cycle
c. phosphorus cycle
d. nitrogen cycle

Explanation:

• First question:
• Evaporation is part of the water cycle, not the carbon cycle.
• Nitrogen fixation is part of the nitrogen cycle.
• Photosynthesis takes in carbon dioxide.
• Respiration releases carbon dioxide.
• Second question:
• Decomposition of organic matter releases carbon dioxide.
• The carbon cycle interacts with other cycles (e.g., water cycle).
• Carbon is involved in biological processes (e.g., photosynthesis, respiration).
• Carbon is stored in the atmosphere, biosphere, geosphere, etc.
• Third question:
• The water cycle involves the movement of water between the atmosphere, land, and oceans.
• The carbon cycle involves carbon.
• The phosphorus cycle involves phosphorus.
• The nitrogen cycle involves nitrogen.

Answer:

• First question: d. respiration
• Second question: a. Decomposition releases carbon dioxide back into the environment
• Third question: a. Water Cycle