Question

review the first and second paragraphs.
the mid - ocean ridge
youve probably heard of the himalayas, the andes, the appalachian mountains, and the rocky mountains. after all, theyre impressive mountain ranges. but you might not have heard of the mid - ocean ridge system—despite the fact that it forms the most extensive chain of mountains on earth.
so, why isnt a mountain range this big more familiar? perhaps because more than ninety percent of the mountain range lies in the deep ocean. the massive mid - ocean ridge system wraps around the globe like seams on a baseball, stretching an impressive 65,000 kilometers. the majority of the
how do the first and second paragraphs work together?
they point out a surprising fact and then downplay its significance.
they point out a surprising fact and then give more details about it.
they point out a surprising fact and then offer a theory from scientists.

Explanation:

The first paragraph introduces the mid - ocean ridge system as a less - known but extensive mountain range. The second paragraph elaborates on why it's less familiar (being mostly in the deep ocean) and gives more details like its length.

Answer:

They point out a surprising fact and then give more details about it.