rainforest - a forest with a lot of tall trees where it rains a lot, power station - a place where electricity is produced, pollution - damage caused to water, air, etc. by making them dirty, exhaust fumes - dirty gas from cars, factory fumes - dirty gas from factories, litter - pieces of paper and other waste that are left in public places, rubbish - things that you throw away because you do not want them, drop - to let something you are carrying fall to the ground, waste - to use too much of something, recycling - when paper, glass, plastic, etc is put through a process so that it can be used again, global warming - when the air around the world becomes warmer because of pollution, atmosphere - a mixture of gases that surrounds any planet,

Environmental problems

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