HELP 5TH GRADE SCIENCE What percentage of the Earth's surface is covered by oceans? O 25 percent
O 55 percent
O 71 percent
O 95 percent

Which is a possible result of higher air temperatures caused by global warming? a. increase in sea level b. freezing of polar ice caps c. rapid evaporation of water in the soil d. flooding of low-lying coastal areas

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.

Does water only take one path through the water cycle? (15 points)