Question

3. Why are coal and petroleum called fossil fuels? Why do we need to conserve them?​

Answer 1

Answer:

They found in under ground

Answer 2

Answer:

Over millions of years, heat and pressure from Earth's crust decomposed these organisms into one of the three main kinds of fuel: oil (also called petroleum), natural gas, or coal. These fuels are called fossil fuels, since they are formed from the remains of dead animals and plants.