Environment

2. the process of making air, water, soil, etc. dirty; the state of being dirty
3. to harm or break something
7. a person or an animal in a book, play or film
8. fuel such as coal or oil that was formed over millions of years from parts of dead animals or plants
10. the natural world in which people, animals and plants live
11. a building with glass sides and a glass roof for growing plants in

1. a small window in a roof
2. a large round object in space that moves around a star (such as the sun) and receives light from it
4. animals, birds, insects, etc. that are wild and live in a natural environment
5. a written text of a play, film
6. an afternoon performance of a play, etc.; an afternoon showing of a film
9. small pieces of rubbish such as paper, cans and bottles, that people have left lying in a public place