Athens was the first Greek city-state to develop a A. military B. system of roads C. democracy D. slave trade

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.

What are the answers for the following questions?

Find the area of the shaded region.