What is the value of x?

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.

From the standpoint of geography,a is an internal rendering of an individual's known world

Political boundaries are determined by the political party in control at the time. true or false