pollution, when water or air is not clean, factory, a place where people work and produce things, rainforests, the lungs of our planet, renewable, a kind of energy source, smoke, it comes out from the factory chimney, overpopulation, too many people, poverty, when people have no money, no food, unemployment, when a person has no job, crime, when a person did something against the law and has to be sent to jail, issue, a problem,a question, greenhouse, a type of gases, climate, we say " a ........ change", fossil, fuels that we can burn, sea, water levels which are rising, improve, to make something better.

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