Consider the following activities: 1. Spreading finely ground basalt rock on farmlands extensively. 2.…

Consider the following activities: 1. Spreading finely ground basalt rock on farmlands extensively. 2. Increasing the alkalinity of oceans by adding lime. 3. Capturing carbon dioxide released by various industries and pumping it into abandoned subterranean mines in the form of carbonated waters. How many of the above activities are often considered and discussed for carbon capture and sequestration?
  1. Only one
  2. Only two
  3. All three
  4. None

Solution

Per the official UPSC key, the answer is B. All three are discussed CCS techniques — most coaching keys marked C. UPSC officially marked B.

Asked in: UPSC Prelims 2023

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