Question

What will happen if fossil fuels like coal and petroleum are completely exhausted?

Answer 1

then the royalty of humam beings on the the is also exthaust.

Answer 2

1. petroleum products such as petrol and diesel are such as petrol and diesel are used as fuels in transport to run scooters, motorcycles, cars, buses commerce, things and aeroplanes.
2. since the industrial revolution, we have been using increasing amount of energy. so we need more energy resource.
so without coal and petroleum products life on the earth is impossible.