What evidence does the article provide in regards to the purposeful development of incan farming methods ? what farming methods did the incas use to adapt to theirs local environment

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.

Match the following items. 1 1 (4,4) 2. (-4,-2) 3. (3.-6) 4. (-4, 6) 5. (1,5)

Wegeners theory of continental drift states that the continents have changed throughout history while the theory of plate tectonics