Which area is the most common source region
for cold, dry air masses that move over new york
state?
(1) north atlantic ocean
(2) gulf of mexico
(3) central canada
(4) central mexico

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.

When you imagine how you'll get from your house to the store, you are a. mental projection b. mental map c. piagetian projection d. cognitive load

The european union was formally established in