Question

कौन सी पूर्ण घन संख्या है?
(क)216 (ख)15625
(ग)2025 (घ)729​

Answer 1

Answer:

Dense forests got buried under the soil due to natural processes, millions of years ago. More and more soil got deposited over them and they got compressed more. This led them to get exposed to very high temperature and pressure. They slowly got converted into coal under these extreme conditions. The whole process of formation of coal from dead vegetation is known as carbonization.