The state with the largest number of immigrants is

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 is an additional type of erosion found at the coast? what does it mean?

Heyi am new to are you all americans? ( just want to know , i don't mean any offence ) ?