If southern hemisphere seasons are less severe than northern hemisphere seasons, do you think it's always been that way during the past 200 million years? Why or why not?

Examine the population chart of niger. based on this chart, niger is in the stage of thompson’s demographic transition. a. balance b. growth c. leveling d. replacement

What is drought? what problem can cause?

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.