Consider the following statements:

  1. Coal ash contains arsenic, lead and mercury.
  2. Coal-fired power plants release sulphur dioxide and oxides of nitrogen into the environment.
  3. High ash content is observed in Indian coal.

Which of the statements given above is/are correct?

[UPSC Civil Services Exam – 2020 Prelims]

(a) 1 only

(b) 2 and 3 only

(c) 3 only

(d) 1, 2 and 3


Answer: (d)        

Explanation:

  • Statement 1 is correct as coal itself is not toxic but when burned, it produces ash containing harmful elements like lead, mercury, cadmium, chromium, arsenic, and selenium that pose a threat to human health.
  • Statement 2 is also correct as thermal power plants, particularly those burning fossil fuels like coal, are major sources of nitrogen oxides and sulfur dioxide, which contribute to acid rain.
  • Similarly, statement 3 is correct as India’s domestic coal reserves have a high ash content ranging from 40 to 45 percent.

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 »
Loading...
Left Menu Icon