Afforestation and carbon sink – UGC NET Question

Afforestation establishes new forests that remove carbon dioxide from the atmosphere and store it in biomass and soils, thereby acting as a carbon sink and helping to offset emissions.

Option A:
Incorrect; forests do not simply reflect all solar radiation, and their climatic effects are more complex than uniform cooling by reflection.

Option B:
Correct; it explains how planting trees sequesters carbon and lowers net greenhouse gas concentrations.

Option C:
Incorrect; even large-scale tree planting cannot eliminate the need to reduce emissions from sectors like energy, transport and industry.

Option D:
Incorrect; trees also emit water vapour and other gases; saying they emit only oxygen oversimplifies plant physiology.