Once a hypothesis has been shown to be valid, it becomes a A. conclusion
B. topic sentence
C. rhetorical question
D. thesis statement

Relatively steep zone that is compared with the shelf that marks the boundary between continental crust and ocean crust.

Eastern europe and parts of northern europe have which of the following climates?

Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)