2020 Environment - Pollution, Coal
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?
- 1 only
- 2 and 3 only
- 3 only
- 1, 2 and 3
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