What are the theories regarding the interaction of the natural environment with human societies?

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.

Which ofbthe following is a characteristic shared by both brazil and mexico

Why is canada's east coast a great fishing area? will name brainliest and 30