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    She haughtily took the glass, looked into it and then poured the beer over his face. All right, so the people running totally free UK dating sites aren't doing it for the love.

    Math in carbon dating

    Instead of returning to the atmosphere, the carbon from these lifeforms is trapped within the Earth.

    Because the cosmic ray bombardment is fairly constant, there’s a near-constant level of carbon-14 to carbon-12 ratio in Earth’s atmosphere.

    When plants and animals die, much of their carbon is returned to the atmosphere as the organisms decompose.

    Every so often, a plant or animal does not decompose right away.

    Historians can tell what cultures thrived in different regions and when they disintegrated.

    Anthropologists can describe a people’s physical character, culture, and environmental and social relations.

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