earth day

6. the surroundings or conditions in which a person, animal, or plant lives or operates.
7. the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
10. make or become rotten; decay or cause to decay.
12. a large natural stream of water flowing in a channel to the sea, a lake, or another such stream.
13. intended to be used once, or until no longer useful, and then thrown away.

1. a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere.
2. a large area covered chiefly with trees and undergrowth.
3. an area of land that receives no more than 25 centimeters of precipitation a year mostly dry
4. capable of being decomposed by bacteria or other living organisms.
5. a long wall or embankment built to prevent flooding from the sea.
7. a woody perennial plant, typically having a single stem or trunk growing to a considerable height and bearing lateral branches at some distance from the ground.
8. a person who campaigns to bring about political or social change.
9. prevention of wasteful use of a resource.
11. a very large expanse of sea, in particular each of the main areas into which the sea is divided geographically.