Match the words (1-8) with their definitions: 1) waste 2) pollute 3) nature 4) environment

Let's match the words with their definitions: 1) waste - d) useless materials 2) pollute - c) to make air, water and soil too dirty and dangerous for people 3) nature - b) a scientist who studies the environment and the way plants, animals and people live together in relation to each other 4) environment - a) the place in which people live and work