What is the hottest part of the earth?

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.

What is a small water source like a stream or brook?

In the diagram below, ab and bc are tangent to o. what is the measure of