The northern hemisphere is located between the equator and what point

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.

Equilateral triangle pbj is inscribed in a circle as shown. determine the measure of arc pjb.

Why is the study of demography important to geographers