Cultural exchange between nations has blank as a result of technological advances

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.

Macbeth and lady macbeth are partners in the nurder of duncan and both become

What could the united states of america do to improve their status? name at least 3(ap human geography)