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___ is the removal or cutting down of trees in an area for city use and farm lands

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___ are energy sources such as coal, fuel oil and natural gas

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To ___ is to make air, water, or soil dirty or unclean.

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The ___ ___ occurs when the Earth's atmosphere traps gases such as carbon dioxide. This makes the Earth's surface warmer.

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___ is the increase of temperature on the Earth due to the Greenhouse Effect

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___ is the using up of something like energy or resources

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___ is harm or injury that makes something less valuable

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Fish begin to die off and swimming becomes impossible 

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 Environmental problems such as the Greenhouse Effect and acid rain

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vegetables can become dangerous to eat and this can lead to deforestation

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People suffer from increased stress and headaches