The invention of the sail created all of the following effects except a. easier travel b. more control over boats c. smaller boat crews d. quicker travel up the river

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.

Which characteristic regarding the americas often stood out the most for many europeans? > > summary 1 2 3 4 5 6 7 8 9 10send a message review: incorrect exit which characteristic regarding the americas often stood out the most for many europeans?

What causes the drought cycles in africa? a. the jet stream b. mount kilimanjaro c. monsoon climate zones d. quickly evaporating rainwater