Which is a natural disadvantage africa has , compared to most other places

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.

Lines of longitude are like stripes from the top of the globe down to the bottom virtually slicing the earth like an orange

How did geographic isolation affect the islands in the australasia ecozobne?