Civil Services Prep

Prelims 2018 · Environment · Question 65

Which of the following statements best describes "carbon fertilization"?

  1. Increased plant growth due to increased concentration of carbon dioxide in the atmosphere
  2. Increased temperature of Earth due to increased concentration of carbon dioxide in the atmosphere
  3. Increased acidity of oceans as a result of increased concentration of carbon dioxide in the atmosphere
  4. Adaptation of all living beings on Earth to the climate change brought about by the increased concentration of carbon dioxide in the atmosphere

Answer

Increased plant growth due to increased concentration of carbon dioxide in the atmosphere

(a) Carbon fertilization means enhanced plant photosynthesis/growth due to higher atmospheric CO2 availability. Correct.

(b) This describes the greenhouse effect/global warming, not carbon fertilization. Incorrect.

(c) This refers to ocean acidification caused by dissolved CO2 forming carbonic acid. Incorrect.

(d) This is about adaptation to climate change, not the meaning of carbon fertilization. Incorrect.

  1. Consider the following statements with reference to India's response to climate change : I. India's Long-Term…
  2. With respect to the Western Hoolock Gibbons, which of the following statements is/are correct? 1. A Sanctuary…
  3. Which of the following best explain(s) the rationale for protecting mangrove ecosystems in the context of…
  4. Which of the following statements with regard to the arrival of Amur Falcons at Doyang Lake in Nagaland each…
  5. With reference to Madhav National Park, which of the following statements is/are correct ? 1. It was declared…
  6. Consider the following statements about Rhynchostylis retusa (Foxtail orchid) : 1. It is an epiphytic orchid.…