Which picture shows recycling?,  Sorting bottles into bins, Throwing rubbish into the river, Burning trash, Cutting trees, What does the word environment mean?, . School, B. Nature and surroundings , C. Playground, D. Factory, This picture shows a problem of ______., A. clean air, B. water pollution , C. recycling, D. forest protection, Which action helps protect the Earth?, A. Using more plastic, B. Cutting down trees, C. Saving electricity , D. Littering, “Reduce, Reuse, Recycle” are about ______., A. pollution, B. environment protection , C. global warming, D. traffic.

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