Consider the following:

  1. Photosynthesis
  2. Respiration
  3. Decay of organic matter
  4. Volcanic eruption

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:

  • The statement “photosynthesis does not add carbon dioxide to the carbon cycle” is incorrect, as photosynthesis actually removes carbon dioxide and releases oxygen.
  • Carbon dioxide is released through volcanic activity and respiration, and decomposition also contributes to the release of carbon dioxide.

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:                                               

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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:                                               

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