Consider the following:

  1. Mulching
  2. Photosynthesis
  3. Decay of  landfills

Which of the above adds/add carbon dioxide to the atmosphere?

Answer: [B] 3 Only

Decaying of landfills and anaerobic conditions cause to be a significant source of methane and carbon dioxide. Mulching and Photosynthesis are responsible for carbon sequestration.

This question is a part of GKToday's Integrated IAS General Studies Module