In agriculture, terraces like the ones shown in this photograph are used to grow crops in areas with high elevations such as- A) Japan
B) Kenya
C) Somalia.
D)Australia

Which of the following best describes asbestosis?

What would be the distance of all the planets to the sun in astronomical units?

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.