1. Why would the U. S. and Canada be considered as one region in the world? O Single land mass Similar cultural traits Similar historic development All of the above

Drag the tiles to the correct boxes to complete the pairs. match the stages to their features. low birth rates, death rates are constant high birth rate, and death rate high birth rate and low death rate pre-modern mature industrial industrialization

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.

The earth is composed of three different chemical layers: core, mantle and crust. the formation of these layers was from a process called