What is the defining characteristic of a water cycle? A. The water passes through at least five different locations.
B. It does not include any human water usage.
C. It passes through plants, animals and the ocean.
D. It has the same starting and ending point.

Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c. carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit