What is the relationship between abrasion and the hardness of a rock mineral?

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

The negative impacts of nonnative species generally outweigh the positive impacts

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.