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    • Join Date: Apr 2008
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    #1

    Smile on/in Earth

    Hello everyone,

    ...but these fuels were in/on (our?) Earth for million years...

    Thank you!


    • Join Date: Nov 2007
    • Posts: 5,409
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    #2

    Re: on/in Earth

    ...but these fuels have been on Earth for millions of years...

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