Across
- 1. all wavelengths of electromagnetic radiation; the specific wavelengths that enable sight
- 4. a climate with low temperatures throughout the year and very low precipitation
- 5. barrier that obstructs and confines water and creates a reservo
- 8. a climate with warm summers, mild winters, and moderate precipitation
- 9. a gas that absorbs infrared radiation and emits heat
- 10. prolonged period with lower-than-average precipitation that causes a water shortage
- 12. the long-term weather conditions of a region
- 13. the long-term weather conditions of a region
- 14. a material such as coal, oil, and natural gas that is formed under Earth’s surface from dead plants and animals
- 15. a scientist who studies the interaction of plants and animals within their environment
- 18. any material substance which can propogate waves or energy
- 19. short-term weather phenomenon in which temperatures rise above the normal temperature
Down
- 2. electrical power produced using falling or flowing water
- 3. a climate with hot summers, cool winters, and very little precipitation
- 6. a colorless, odorless gas that is a greenhouse gas; identified by the chemical symbol CH4
- 7. a wall built along the bank of a river or sea to prevent flooding
- 11. an area where solid waste is buried underground
- 16. all of the organisms that make up an ecosystem
- 17. heat and light energy from the Sun