greenhouse effect - when heat cannot escape from the atmosphere and the temperature on earth goes up, recycle - to use something again, or change something so that you can use it again, environment - the natural world around us, save - to stop using something (for example water, money, electricity) or to use it less, drought - a long period of time when there is no rain, ozone layer - the part of the earth's atmosphere which protects the earth from the sun, pollution - the process of making the air, water or land worse, with chemicals, for example, flood - a large quantity of water that suddenly covers an area, global warming - the increase in the temperature on earth, waste - to use something more than necessary, or in an incorrect way, nuclear disaster - an accident with nuclear power, usually causing radioactivity, oil spill - an accident when oil comes out of its container, for example at sea,

Gateway B1 unit 6

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