Luxembourg borders what three countries?

a. belgium, france, and germany

b. germany, switzerland, and austria

c. the netherlands, belgium, and germany

d. denmark, germany, and poland

Explain why components that are naturally found in air can be considered air pollutants.

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.

What were the damages and responses of hurricane isabel