Yes there are rocks under the sea. The entire crust of the earth, including the parts covered by the ocean, is made of rock. ... Some kinds of rocks FORM from seawater and settle on the seafloor. Limestone forms by chemical precipitation from seawater.
Answer:
The Earth's most important non-renewable energy resource is Fossil fuels, which include coal, oil, and natural gas.
If you search up your question on Brainly, both choices A) Coal and C) natural gas got bad votes. So that leaves us with B) Oil.
I hope this helps somehow. :>