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In its purest form, it's odorless, nearly colorless and tasteless. It covers about 70% of the earth and is the only substance that occurs naturally as a solid, liquid and gas. And it's also useful in many engineering tasks. And surprisingly there are still many things about it that we still don't fully understand. Why not have a read and find out a bit more about this basic substance that is so important to the world we live in.
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Monday 22 October, 2007 10:05 AM |