Why does Earth have a lower amount of carbon in the atmosphere than planets such as Venus and Mars? (1 point)

• Most of Earth's carbon can be found in the proteins and lipids of organisms
• The carbon escapes Earth's atmosphere faster than it is being absorbed
• Plants take in carbon dioxide from the atmosphere for photosynthesis
• Carbon is released into the air during plant decomposition

1 answer

The correct answer is: Plants take in carbon dioxide from the atmosphere for photosynthesis.

This process helps to regulate the amount of carbon dioxide in Earth's atmosphere, contributing to lower levels of carbon compared to planets like Venus, which has a thick atmosphere rich in carbon dioxide, and Mars, which also has a thin atmosphere with higher carbon dioxide levels than Earth.