Across
- 3. the protection of the environment
- 7. the height of a physical feature above sea level
- 8. a long period with little or no precipitation
- 10. a seasonal wind that brings intense rainfall during part of the year
- 12. is the process of water turning into vapor and rising into the atmosphere due to the sun's heating
- 15. measures such as sewers to protect public health
Down
- 1. a community of living organisms and their natural environment, or habitat
- 2. a layer of rock beneath Earth that contains water
- 4. separate region of a continent
- 5. to crash together
- 6. an area where a river deposits sediment as it empties into a larger body of water
- 9. chemical or physical waste that creates an unclean or dirty environment
- 11. a long period of food shortage
- 13. a rigid section of Earth's crust that can move independently
- 14. fertile; suitable for farming