Question

The quality of the coal does not depend upon __________.

• A. the depth of the reserves
• B. decaying time
• C. temperature
• D. nature of soil

Answer 1

The correct option is D nature of soil

The quality of coal depends on the carbonization. As the amount, of carbonization increases, we get the more quality of coal having high carbon content. Carbonization does not depend on the nature of the soil.