Question

Where is natural gas found? Why is it called a clean fuel? Give two reasons.

Answer 1

natural gas is found in deep underground rock formations or near petroleum or coal reservoirs . It is called clean fuel because:
1. it burns completely  and produces 50% less CO2 gas than coal when burning
2.efficient combustion process
3.it is non toxic and non poisonous for humans. 

Answer 2

natural gas is found in deep underground rock formation or near petroleum or coal reservoirs.it is called clean fuel because it burns completely and produce 50 percent less CO2 gas than coal when burning...