|Understanding Our Planet Through Chemistry - a guide to how chemists and geologists use analytical chemistry to: determine the age of the Earth; show an extraterrestrial body collided with the Earth; predict volcanic eruptions; observe atmospheric change over millions of years; and document damage by acid rain and pollution of the Earth's surface|
22-September-11 - 12:02:06|
More posts of this quality. Not the usual c***, pelase
Giggles 25-September-11 - 00:59:21
Fell out of bed feienlg down. This has brightened my day!
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