Environment, the natural world around us, including air, water, land, plants, and animals., Population, all the people or animals living in a particular place., Pollution, harmful substances added to the environment that make it dirty or unsafe., Rubbish, waste materials or things (garbage, litter) that are thrown away., Species, a group of living things (plants or animals) that are similar, Disappear, to go away or stop existing., Endangered, at risk of disappearing forever (becoming extinct)., Recycle, to process used materials so they can be used again., Reduce, to make something smaller in amount, size, or number., Reuse, to use something again instead of throwing it away

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