If the measure of an angle is 45 degree, what is the measure of its supplementary angle?

The district of columbia could be eliminated completely if a majority of congress voted in favor of the action. a. true b. false

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.

Witch of the following volcano hazards is made up of rocky particles about the size of a grain of sand