How Should the World Respond to Global Warming? (In

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Language: English

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My fourth grade class gets with a partner and they go to the website Earth Dog. Disseminated ore deposit=A large low-grade ore deposit in which generally fine-grained metal-bearing minerals are widely scattered throughout a rock body in sufficient concentration to make the deposit economical to mine. Christian Doppler, an Austrian physicist, who in 1842 explained why the whistle of an approaching train had a higher pitch than the same whistle when the train was going away.

Pages: 96

Publisher: Referencepoint Press (August 2009)

ISBN: 1601520867

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