Scientists believe that humans arrived on Earth during the _______ Period. A. Triassic B. Cretaceous C. Tertiary D. Quaternary

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Scientists believe that humans arrived on Earth during the Quaternary Period.

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Asked 9/12/2013 11:38:13 AM

Updated 6/29/2015 2:42:19 PM

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Flagged by emdjay23 [6/29/2015 2:41:45 PM], Edited by Andrew. [6/29/2015 2:42:18 PM], Unflagged by Andrew. [6/29/2015 2:42:19 PM]

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emdjay23

Scientists believe that humans arrived on Earth during the Quaternary Period.

Added 6/29/2015 2:41:44 PM

This answer has been confirmed as correct and helpful.

Confirmed by Andrew. [6/29/2015 2:42:19 PM]

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The type of soil with the smallest particles would be composed of A. gravel. B. sand. C. clay. D. silt.

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The type of soil with the smallest particles would be composed of clay.

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The Coriolis effect is caused by Earth's A. location in space. B. alignment with the sun. C. rotation. D. alignment with the moon.

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Updated 10/5/2015 2:01:04 PM

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The Coriolis effect is caused by Earth's rotation.

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Confirmed by yumdrea [10/5/2015 2:12:06 PM]

Loam is made up of all of the following materials except A. air. B. clay. C. gravel. D. silt.

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Updated 10/18/2014 7:22:40 AM

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Janet17

Loam is made up of all of the following materials except: gravel.

Added 10/18/2014 7:22:40 AM

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The abundance of nutrients at the ocean's surface is a result of A. upwelling. B. seamounts. C. tides. D. deep currents.

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Updated 8/2/2015 6:28:55 PM

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emdjay23

The abundance of nutrients at the ocean's surface is a result of: upwelling.

Added 8/2/2015 6:28:55 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [8/2/2015 10:54:48 PM]

4. What must occur for a fossil to form? A. The organism must go through a process of petrification. B. The organism must be buried in sediment soon after it dies. C. The climate where the organism dies must not be too cool. D. The organism must fall into igneous rock.

Weegy: Must occur for a fossil to form : The organism must be buried in sediment soon after it dies. (More)

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Updated 10/18/2014 7:23:03 AM

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