Air masses are responsible for the bitter cold winter weather that can cover wide sections of north america.

The earth's internal process which drives seafloor spreading is

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 a state government creates a new tax to fund schools a example of checks and balances