How does climate in a specific region differs during El Nino and La Nina

:calculate the sum of the interior angles of a 13-sided polygon.

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.

Give reason sugarcane waste can be recycled into useful products