Consider the following:

  1. Photosynthesis
  2. Respiration
  3. Decay of organic matter
  4. volcanic action

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

[UPSC Civil Services Exam – 2011 Prelims]

(a) 1 and 4 only

(b) 2 and 3 only

(c) 2, 3 and 4 only

(d) 1, 2, 3 and 4


Answer: (c)        

Explanation:

Sources of Carbon Dioxide in the Carbon Cycle:

  • Volcanic action
  • Respiration
  • Decomposition

Photosynthesis takes up Carbon dioxide and releases oxygen, but it does not add carbon dioxide to the carbon cycle.

Consider the following statements:                                                                   The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:                                               

Read More »

Consider the following statements:                                                         The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:                                               

Read More »

Useful Links

Download
Neyyar App

Left Menu Icon