Which statement best explains the changes in borders shown between maps A and b

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.

Countries that have a traditional economy often develop at a slower pace than countries with a free market economy. true or false

Explain how earths tilt and revolution around the sun affects weather and climate