What is theh relationship between ukraine history and geography?

What is the difference between external & internal migration

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.

In a command economy, the majority of goods and services are provided by the