Explain how water pollution affects marine ecosystems in a short paragraph.

On venus, which of the following drives geological change? a. hurricanes b. volcanoes c. tsunamis d. earthquakes

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.

As europeans moved to new zealand, the maori began to see themselves as a. a political party b. a nation c. individual competing groups d. immigrants (gradpoint)