Question

How do humans cycle carbon from the biosphere to the atmosphere?(1 point)
Responses

by respiration
by respiration

by driving cars that use gasoline for fuel
by driving cars that use gasoline for fuel

by eating plants
by eating plants

by planting vegetable crops

Answer 1

The correct response is:

**by respiration**

Humans cycle carbon from the biosphere to the atmosphere primarily through the process of respiration, where we inhale oxygen and exhale carbon dioxide. Additional human activities, such as driving cars that use gasoline (which releases CO2 when fossil fuels are burned), also contribute to carbon cycling but are not part of the natural carbon cycle process that specifically involves respiration.