エピソード

  • noise pollution
    2023/07/02
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  • land pollution
    2023/07/02
    1分未満
  • water pollution
    2023/07/02
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  • air pollution
    2023/07/02

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  • types of pollution
    2023/07/02

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  • pollution
    2023/07/02

    Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash. They can also be created by human activity, such as trash or runoff produced by factories. Pollutants damage the quality of air, water, and land.

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