PRELIMS 2011 · ENVIRONMENT

Consider the following : 1. Photosynthesis. 2. Respiration. 3. The decay of organic matte…

Attempt this previous-year question. The correct option stays hidden until you choose.

Question

Consider the following :

1. Photosynthesis.
2. Respiration.
3. The decay of organic matter.
4. Volcanic action.

Which of the above add carbon dioxide to the carbon cycle on Earth?

Pick an option to check yourself.

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Attempt Prelims MCQs or open Mains questions by paper — then continue the same bank inside the app with visual decks.