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  1. Consider the following
    1. Carbon dioxide
    2. Oxides of Nitrogen
    3. Oxides of Sulphur
    Which of the above is/are the emission/emissions from coal combustion at thermal power plants?
    1. Only 1
    2. 2 and 3
    3. 1 and 3
    4. 1, 2 and 3
Correct Option: D

1, 2 and 3



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