Which statement best describes the composition of magma?
a. magma contains only three elements.
b. magma contains the same element's as snow.
c. magma contains the same element's as earth's crust.
d. magma is an element all it's own.

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.