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  9. Q14

CGPSC 2020 · Question 14 of 100

Mercury is a toxic substance that severely contaminates land, water, air and the food chain. Which among the following is/are the source(s) of mercury pollution? I. Pesticides II. Dental amalgam fillings III. Fluorescent lamp IV. Coal-based thermal power plants

General Knowledge

  1. AOnly I
  2. BOnly I and II
  3. COnly I, II and III
  4. DI, II, III, and IVCorrect

Answer: D. I, II, III, and IV

Explanation

Mercury is a highly toxic substance that poses a significant threat to the environment and human health. It severely contaminates land, water, air, and the food chain, leading to various adverse effects.

Source: CGPSC 2020 official paper

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