Which of the following adds to the carbon dioxide concentration in atmosphere ?

Question

(I) Volcanic action

(II) Respiration

(III) Photosynthesis

(IV) Decay of organic matter

[A] (I) and (III) only

[B] (II) only

[C] (I), (II) and (IV) only

[D] (I), (II), (III) and (IV)

Answer & Explanation
Answer: (I), (II) and (IV) only

Environmental Studies Short Question | Gkseries