What causes the different colors of visible light in the electromagnetic spectrum? A. Different wavelengths
B. Different amplitudes
C. Different frequencies
D. Different speeds

Choose the molecule that is described by each phrase. energy used during long activities:

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

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.