Environment

2. exotic animal or plant which is not native in a certain place, often threatens the native species
4. using natural products and energy in a way that does not harm the environment
6. no longer in existence
7. the act of getting rid of sth, for example garbage
11. the existence of a large number of different kinds of animals and plants
13. the act of destroying sth
14. an animal that has cold blood and skin covered in scales, and that lays eggs, e.g. snakes or crocodiles
15. a long period of time when there is little or no rain
16. when there is water in the air which makes it hard for you to see clearly
17. synonym: poisonous

1. a piece of electrical equipment in which food is kept cold so that it stays fresh
3. a thick forest in tropical parts of the world that have a lot of rain
5. a mass or river of ice, formed from snow on mountains
8. an area that is dark and cool under or behind sth, e.g. a tree or building, because the sun’s light does not get to it
9. small pieces of rubbish such as paper, cans and bottles, that people have left lying in a public place
10. the process of making air, water, soil, etc. dirty
12. animals, birds, insects, etc. that are wild and live in a natural environment