Question

Conclusion of coal and petroleum.

Answer 1

Answer:

The current Northwest energy system runs primarily on three different sources of energy: coal, hydro, and petroleum. ... Coal and petroleum are fossil fuels and therefore inherently limited in quantity. These fuels are also highly polluting, and cannot form the basis for a completely sustainable society.

hope it will help u

mark it as brainliest answer

Answer 2

Answer:

hey buddy......

Explanation:

hope it is help ful for you.......mark as brainlist plz follow me