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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