Which of the following adds/add carbon dioxide to the carbon

| M: +2.00/-0.67

Which of the following adds/add carbon dioxide to the carbon cycle on the planet Earth?

1. Volcanic action

2. Respiration

3. Photosynthesis

4. Decay of organic matter

Select the correct answer using the code given below.

?????????? ??? ?? ??? ?? ???? ?????? ?? ?????? ???? ??? ?????? ?????????? ?????? / ?????? ???

1. ?????????? ??????

2. ?????

3. ?????? ????????

4. ???????? ???????? ?? ????

???? ??? ?? ??? ?? ????? ???? ??? ????? ??????

[Ecology and Environment 2011-16 New Without Errors,UPSC IAS Prelims 2014]

A 1 and 3 only

केवल 1 और 3

B 2 only

२ ही

C 1, 2 and 4 only

केवल 1, 2 और 4

D 1, 2, 3 and 4 only

केवल 1, 2, 3 और 4

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