melt - to turn from something solid into something soft or liquid, or to cause something to do this, waste - an unnecessary or wrong use of money, substances, time, energy, abilities, etc., oil spill - an accident in which oil has come out of a ship and caused pollution, flood - a large amount of water covering an area that is usually dry, recycle - to sort and collect rubbish in order to treat it and produce useful materials that can be used again, pollution - damage caused to water, air, etc. by harmful substances or waste, drought - a long period when there is little or no rain, ozon layer - a layer of air containing ozone high above the earth, global warming - a gradual increase in world temperatures caused by gases, greenhouse effect - the gradual warming of the earth,

Gateway Environment Unit 6

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