Question

keeping in mind their availability in nature, explain the need of using coal and petroleum judiciously.

Answer 1

coal and petroleum are a type of fossils fuel which take 100 of years in forming and also limited in quantity hence they are also non renewable resource that's use them judiciously

Answer 2

We know that coal and petroleum are fossil fuels.If they are used once they cannot be renewed easily in short period of time,they will take millions of year to renew as they are exhaustible resources.So they should be used judiciously to ensure their availability for a longer period of time.