Recycling The process of converting waste into reusable material, , A device that converts sunlight into electricity, , Unwanted material or rubbish., , Increase in Earth’s average temperature due to human activity, , Not harmful to the environment., , When water covers land that is usually dry., , Substances released into the air, especially by cars/factories, , Cutting down large areas of forest., .

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恢復自動保存: ?