How are igneous rocks classified in general? a. basic and acidic b. organic and inorganic c. intrusive and extrusive d. foliated and nonfoliated

What evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.

Are divergent boundaries responsible for tsunamis?

Quito, ecuador, is relatively close to the equator, but it has a climate than surrounding areas because it has a elevation a. cooler; lower b. cooler; higher c. warmer; lower d. warmer; higher