Question

Much of the world's limestone comes from the _______ in the skeletons of _______.

Answer 1

i can help if you tell me what its about.

Answer 2

much of the world's limestone comes from the fresh water in the skeletons of the marine organisms. it is usually the accumulation of the debris of coral , shell and other marine animals. it can also be formed in cave when water evaporated that has high content of calcium carbonate