Why are the oceans becoming acidic?

A)Because of global cooling

B)Because of excess carbon dioxide in the atmosphere reacting with water and forming carbonic acid

C) Because of the dissolution corals (calcium carbonate)

D) Because of alkaline rain falling into the ocean

1. -define adaptation2 explain darwin's theories of descent with modification and natural selection in detail3. -explain how each of these provides evidence for evolution: a. -fossil record, including superposition and transitional fossilsb-anatomy, including homologous structuresc-biological molecules, including dna and proteins4. -explain the difference between convergent and divergent evolution.5. -define and give three examples of artificial selection6. -define and give one example of coevolution.7. -explain biodiversity and how it benefits humans.8. -explain a type of population lest affected by environmental change.