we can say that on a long term basis the ___ principle of sustainiability has especially helped life on the earth to adapt to drastic changes in environemtnal changes

Adeveloping nation's economy is based on a developed nation's economy is based on stay tuned- i may post some more questions from my study guide : )

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?