Where can you find cells that each have a cell well, a nucleus, and chloroplasts? A. There cells cannot be found. B. In plants C. In animals D. In both plants and animals

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere