Im pretty sure burning paper
its either that or melting iron but im 90 percent sure its paper burning
Answer:
petroleum and Natural gas are fossil fuels
Explanation:
As far as I know acids turn litmus paper red and bases turn it blue. on the pH scale anything under 7 is acid and above is base so I think it is A. I am not totally sure, but that is the best answer I can give you! Good Luck! Hope this helps!!
