Since the color and shape of quartz varies from sample to sample, a geologist may need to examine other physical properties to properly identify the mineral.

What is the name of the ocean current that affects the british isles? how does it influence their climate?

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.

The rwandan patriotic front and the interahamwe were a. relief agencies b. military groups c. political parties d. nonprofit organizations select the best answer from the choices provided. a b c d