Which statement describes a difference between the lower mantle and oceans crust

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content

Study the picture of the ocean. which is the best example of an organism’s niche shown in the picture? a. the environment contains several of the same species of coral. b. the shallow area of the ocean meets the needs of the coral and the fish. c. the ocean has fish and coral that live in the same area. d. the coral take in food from the water and provide shelter for the fish.