In the water cycle, clouds form as a result of .

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

Which of the following describes a bathypelagic zone