Peter lives in a place with the coordinates N 33°45ʹ18ʺ, W 84°23ʹ24ʺ. For Thanksgiving, he plans to visit his cousin Jenna, who lives in a place with coordinates N 42°54ʹ17ʺ, W 78°50ʹ58ʺ.

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

There is only one climate type in motion across the world at a time

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.