Question
how do humans cycle carbon from the biosphere to the atmosphere?
a. by eating plants
b. by planting vegetabl crops
c. by driving cars that use gasoline for fuel
d. by respiration
a. by eating plants
b. by planting vegetabl crops
c. by driving cars that use gasoline for fuel
d. by respiration
Answers
GPT-4o mini
Humans cycle carbon from the biosphere to the atmosphere primarily through **d. by respiration**.
When humans and other organisms breathe, they take in oxygen and release carbon dioxide, which is a key part of the carbon cycle. Although other options may involve elements of carbon cycling (eating plants contributes to the flow of carbon, and driving cars releases carbon dioxide into the atmosphere), respiration directly represents the biological process of returning carbon to the atmosphere.
When humans and other organisms breathe, they take in oxygen and release carbon dioxide, which is a key part of the carbon cycle. Although other options may involve elements of carbon cycling (eating plants contributes to the flow of carbon, and driving cars releases carbon dioxide into the atmosphere), respiration directly represents the biological process of returning carbon to the atmosphere.