Answer:
A)Crude oil an important source of energy is now extracted from beneath the ocean floor
Living things are mostly part of nature while nonliving things are made by hand
Well, if you look at the ocean from a standing point of view, it's pretty flat and water is spread all around the surface. Because of this, most people would assume that ocean is just flat and smooth.
Thanks to the discovery of science, we're able to go down deep and learn that there is more to the ocean than we knew about. =)
Hope that helps! -UnicornFudge aka Nadia