Global warming

6. A period of abnormally dry weather long enough to cause serious shortages of water for other needs in the affected area.
7. a slowly moving mass of ice.
8. The complex of physical, chemical, and biotic factors that act upon an organism.
11. A green house gas that absorbs and radiates heat.
13. The specific condition of the atmosphere at a particular place and time.
15. A wave of unusually hot weather.

1. The state of being polluted.
2. The rays of the sun.
3. the regions to the north of the Arctic Circle centered on the North Pole.
4. The degree of hotness or coldness of a body or environment.
5. is the only planet on which water in liquid form exists, covering more than 70 percent of its surface.
8. The complex of a community of organisms and the community's environment functioning as an ecological unit.
9. Coal, oil, and natural gas.
10. A large area of water between continents.
12. dependent on temperature; they are related to, or caused by, heat.
14. A state of matter that has no fixed shape and no fixed volume.
15. The place or environment where a plant or animal naturally or normally lives and grows.