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During convection, hot substances _____ while cooler substances _____.
During convection, hot substances RISE while cooler substances SINK.
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Asked 11/29/2015 6:20:28 PM
Updated 11/29/2015 6:36:17 PM
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During convection, hot substances RISE while cooler substances SINK.
Added 11/29/2015 6:36:17 PM
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Calcium has an atomic number of 20. How many electrons of a calcium atom are involved in chemical bonding? A. 2 B. 8 C. 16 D. 20
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Updated 11/30/2015 10:16:22 PM
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The number of electrons of a calcium atom involved in chemical bonding is 2.
Added 11/30/2015 10:16:22 PM
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Whom did George Washington plan to trap at Yorktown?
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George Washington planned to trap Charles Cornwallis at Yorktown.
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In a stack of undisturbed rock layers, the upper layers are younger than the lower layers. This is also stated as the law of _____. A. superposition B. faunal succession C. original horizontality D. cross-cutting relationships
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Updated 9/25/2017 4:51:54 AM
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In a stack of undisturbed rock layers, the upper layers are younger than the lower layers. This is also stated as the law of superposition.
Added 9/25/2017 4:51:54 AM
This answer has been confirmed as correct and helpful.
Confirmed by Janet17 [9/25/2017 5:54:20 AM]
Earth's age is closest to _____ years. A. 32,000 B. 3,200,000 C. 4,600,000 D. 4,600,000,000
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Updated 9/5/2017 11:27:32 PM
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Added 9/5/2017 11:27:32 PM
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