Explain how carbon is transferred back and forth between the atmosphere and forests.

Carbon is transferred back and forth between the atmosphere and forests through a process known as the carbon cycle. Here's a step-by-step explanation:

1. Photosynthesis: During the day, trees and plants absorb carbon dioxide (CO2) from the atmosphere. This process is known as photosynthesis. The absorbed CO2 is then used to produce glucose (a type of sugar), which provides energy for the tree or plant to grow.

2. Storage: The carbon from the CO2 is stored in the tree or plant as it grows. This is known as carbon sequestration. Forests are a major carbon sink, meaning they absorb more carbon than they release.

3. Respiration: At night, trees and plants release some of the stored carbon back