Task 1 "Find the definition" Activity. Match the words with the definitions, use your dictionaries if you need. Differentiation by outcome: make up your own sentences with these words if you are able to.
1) Waste a) birds, animals, plants that live in a natural environment
2) Pollution b) connected with chemistry
3) Wildlife c) something that is not needed and is therefore thrown away
4) Chemical d) action of making air, water, land