ozone layer - A layer in the upper atmosphere that protects us from the dangerous radiation from the sun., hurricane - A very destructive storm with strong winds., acid rain - Rain that contains dangerous chemicals., greenhouse effect - The warming of the Earth's atmosphere that is caused by air pollution., global warming - The rise of air temperatures., Earth - The name of our planet., endangered - The state of plants or animals that are now rare and can completely disappear., renewable energy - The kind of energy that won't finish., pollution - The contamination of air, water, or soil by substances that are harmful to living organisms., drought - A long period of time during which there is little or no rain., rain forest - A tropical forest that has many tall trees and receives a lot of rain., flood - A large amount of water beyond its normal limits, especially after heavy rain., recycling - The action or process of converting waste into reusable material., glass - Type of waste that belongs to the green container., paper - Type of waste that belongs to the blue container.,

The environment

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