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  • Message 1. 

    Posted by SapphireRandomDaffodil (U15795522) on Sunday, 21st July 2013

    what is needed for a theory to be accepted?

    Why is UK air quality regularly monitored?

    Why are all the atoms in all the fossil fuels ever burnt still present on earth?

    Why do fossil fuels have sulfur in them?

    Two processes that burn large amounts of fuel?

    Describe with examples why nitrogen oxides are classified as pollutants?

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