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Q: What contributes to the lack of evidence of the Period of Heavy Bombardment on Earth?
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Asked 7/11/2013 4:21:18 PM
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What is dynamo theory?
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Updated 10/31/2015 3:04:04 AM
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In physics, the dynamo theory proposes a mechanism by which a celestial body such as Earth or a star generates a magnetic field.

Added 10/31/2015 3:04:04 AM
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red gaint
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Updated 10/19/2015 11:59:24 AM
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Red giants a very large star of high luminosity and low surface temperature and evolution when no hydrogen remains in the core to fuel nuclear fusion.


Added 10/19/2015 11:59:24 AM
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Confirmed by jeifunk [10/19/2015 12:08:34 PM], Rated good by jeifunk
define red giant
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Updated 2 days ago|12/8/2017 4:58:40 PM
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Red giant is a star in an intermediate stage of evolution, characterized by a large volume, low surface temperature, and reddish hue.
Added 2 days ago|12/8/2017 4:55:54 PM
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Confirmed by Janet17 [12/8/2017 4:58:46 PM]
What is Pangaea?
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Updated 4/15/2015 9:12:20 PM
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Pangea was a supercontinent that existed on the Earth millions of years ago and covered about one-third of its surface.

Added 4/15/2015 9:12:15 PM
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Europa
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Updated 10/7/2014 4:04:44 AM
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Europa is the sixth-closest moon of the planet Jupiter, and the smallest of its four Galilean satellites, but still the sixth-largest moon in the Solar System.
Added 10/7/2014 3:59:00 AM
This answer has been confirmed as correct and helpful.
Confirmed by selymi [10/7/2014 4:04:36 AM]
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