geography key terms

4. A piece of land surrounded by water
6. an imaginary line around the middle of a planet or other celestial body
8. a ridge of rock in the sea formed by the growth and deposit of coral.
10. giant waves caused by earthquakes or volcanic eruptions under the sea
11. cities with a population of over 10 million
15. a sudden motion or trembling in the earth caused by the abrupt release of slowly accumulated energy
16. a cascade of water falling from a height
17. land along the sea

1. rainforests that occur in areas of tropical rainforest climate in which there is no dry season
2. an opening in the sea floor out of which heated mineral-rich water flows.
3. storm a very powerful low-pressure weather system
5. an area of land that receives no more than 25 centimeters (10 inches) of precipitation a year.
7. outermost shell of Earth
9. a large natural stream of water flowing in a channel to the sea, a lake, or another river.
12. a large body of air with generally uniform temperature and humidity.
13. molten rock that breaks through the Earth's surface
14. a long-term change in the average weather patterns that have come to define Earth's local, regional and global climates.