Which layer of the atmosphere absorbs significant amounts of ultraviolet light? 1. stratosphere
2. thermosphere
3. mesosphere
4. cryosphere

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.

Name one type of data that h-r diagrams do not show.

Asap will mark geography final plz ! what are the benefits of international aid? (give me the right evidence )