Explain how water, wind, and thermal energy from the sun move about earth's surface

What are four key elements of the study of economics?

Which chemical equation is unbalanced? which chemical equation is unbalanced

The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .