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Why are so many big cities located along the banks of a river?
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Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?
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Matches the chemical name of each oxide of phosphorus to its chemical formula
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Start an single atom tab. observe the decay of polonium-211. after each decay, press the reset nucleus button to watch the process again. write a description of alpha decay for po-211
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Using data from seismic waves, geologists have learned that earth’s interior is made up of several
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Why are so many big cities located along the banks of a river?...
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