Quick layer would be the most helpful to the hiker?

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.

Is an official language in every north african country

Explain how earths tilt and revolution around the sun affects weather and climate