Which of the following best describes the Amazon Rain Forest? a. It is home to Pampas, a rich and fertile alluvial plain.
b. it contains more species of plants and animals than any other place.
c. it features the Andes, the longest range of mountains in the world.
d. it has the driest desert in the world, Atacama.

Which of the following is not a challenge to instituting sound global environmental policies? a. most changes are inexpensive and easy to implement. b. elected leaders who support unpopular environmental issues often are not re-elected. c. economic considerations outweigh environmental ones in many societies. d. there is no way to enforce international environmental agreements.