Across
- 4. a liquid found beneath the surface
- 6. when humans remove forests
- 9. where you'll find the very important ozone layer
- 10. a patch of land that has been forced to become a desert because of mountain ranges
- 11. places where the atmosphere is relatively thin
Down
- 1. drive the movement of Earth's tectonic plates in the mantle
- 2. where plate tectonics meet
- 3. hottest of the four seasons
- 5. occurs when a hemisphere is oriented away from the Sun
- 7. water in the equater becomes warmer and east winds blow weaker
- 8. areas usually are areas of fair, settled weather