1.

  Consider the following statements about the conservation of coal in India and select the correct answer using the code given below: 1. Coking coal should be reserved only for metallurgical industry. 2. Low grade coal should be washed to remove impurities. 3. Selective mining should be stopped 4. The non-conventional sources of energy should be popularised Code:

A.  1, 2 and 3 are correct    
B.  1, 2 and 4 are correct
C.  1, 3 and 4 are correct    
D.  1, 2, 3 and 4 are correct
Answer» E.


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