18. How does the study of plate tectonics explain the frequent occurrence of earthquakes along the boundaries between lithospheric plates?

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.

Which country is the smallest island of the greater antilles

As water is cooled from 4 c to 0 c its density