Can some please help me please I will give 30 points of answer is right and marked as brainliest also no links please

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.

Which of the following best describes the circumstance under which countries block the importation of certain products into their country? a. importation blockade b.trade barrier c.trade inhibitor d. domestic protection act

The senate rejected the treaty of versailles mainly because it included the united nations the league of nations an agreement with france an agreement with germany