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MHT CET Medical202623 April 2026Evening ShiftBiologyRespiration in PlantsActual

Which of the following processes adds CO ₂ to the atmosphere?

Options

  1. APhotosynthesis
  2. BRespiration
  3. CCarboxylation.
  4. DNitrification.

Correct answer

B. Respiration

Step-by-step solution

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water, thereby removing CO ₂ from the atmosphere. Respiration is a metabolic process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide, thus adding CO ₂ to the atmosphere. Carboxylation is a chemical reaction in which a carboxylic acid group is produced by treating a substrate with carbon dioxide, which c

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