DROUGHT - A long period with little or no rainfall., EMISSION - The act of releasing gas, smoke, or pollutants into the air., OVERFISHING - Catching too many fish so their population cannot recover., RENEWABLE - A natural resource that can be replaced and will not run out., COMPOST - Decayed organic material used to fertilize soil., LANDFILL - Place where rubbish is buried, DEFORESTATION - Large-scale removal of trees in forests, FLOOD - A large amount of water that covers land which is normally dry., REUSABLE - Something that can be used more than once instead of being thrown away.,

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