Question

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

Answer 1

Humans cycle carbon from the biosphere to the atmosphere primarily through **respiration** and **driving cars that use gasoline for fuel**.

- **Respiration**: When humans and animals breathe, they take in oxygen and release carbon dioxide (CO2) back into the atmosphere as a byproduct of metabolizing food.

- **Driving cars that use gasoline for fuel**: Combustion of gasoline in vehicles also releases CO2 into the atmosphere, contributing to the carbon cycle.

While planting vegetable crops and eating plants are parts of the carbon cycle, they do not directly release carbon into the atmosphere in the same way as respiration and vehicle emissions do.