Question

Why coal and petroleum are called natural resources why should we use them judiciously?

Answer 1

Coal and Petroleum were formed by decomposition of dead remains of animals,
and plants. These were available under earth naturally, so-called fossil fuels and natural resources.

We should use them judiciously because
1. These are conventional sources of energy i.e they are limited.
2. Not viable for future generations.
3. When these burnt cause pollution and emit harmful gases leads to global warming.