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Extrasolar planets

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The red giant Sun

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Durchschnitt: 5 (1 Stimme)
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The ozone concentrations in the stratosphere

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Durchschnitt: 5 (1 Stimme)
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Industrial pollution

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Environmental crisis

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Cars and air pollution

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Industrial pollution

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Environmental pollution

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Nuclear weapon testing

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Hyperion, the natural satellite of Saturn

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