Across
- 4. an increase in the level of the world's oceans due to the effects of global warming
- 5. an uncontrolled fire in a wooded area
- 9. A colorless, odorless gas
- 12. a combustible black or dark brown rock consisting mainly of carbonized plant matter, found mainly in underground deposits and widely used as fuel
- 14. occurrences of unusually severe weather or climate conditions
- 15. the long-term heating of Earth's surface observed since the pre-industrial period
- 18. the ability to do work
Down
- 1. a period of abnormally dry weather sufficiently prolonged for the lack of water to cause serious hydrologic imbalance in the affected area
- 2. a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
- 3. long-term shifts in temperatures and weather patterns
- 6. a substance that has no fixed size or shape
- 7. the presence in or introduction into the air of a substance which has harmful or poisonous effects.
- 8. any of numerous greasy flammable usually liquid substances from plant, animal, or mineral sources that do not dissolve in water and are used especially as lubricants, fuels, and food.
- 10. measure of hotness or coldness expressed in terms of any of several arbitrary scales
- 11. a prolonged period of abnormally hot weather.
- 13. gases in the earth's atmosphere that trap heat.
- 16. to make suitable to requirements or conditions
- 17. the complex of a community of organisms and its environment functioning as an ecological unit