Which process directly leads to the release of stored carbon when trees are cleared or burned?

• A. Deforestation
• B. Photosynthesis
• C. Weathering
• D. Evaporation

Answer: (A)

Deforestation is the process that directly leads to the release of stored carbon when trees are cleared or burned. When forests are cleared, the biomass that has been drawing in and storing carbon through photosynthesis is removed, and if burning occurs, that stored carbon is released immediately as CO2 back into the atmosphere. Photosynthesis actually removes carbon from the air and stores it in wood, so it’s the opposite of releasing carbon. Weathering and evaporation involve other parts of the carbon and water cycles, not the rapid carbon release from cleared or burned trees.