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Spiral galaxies show ________ . Answer a. bright bulges b. star-birth regions c. dark dust lanes d. all of the above .
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Asked 2/27/2012 3:34:01 PM
Updated 5/29/2022 5:01:41 PM
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User: Spiral galaxies show ________ . Answer a. bright bulges b. star-birth regions c. dark dust lanes d. all of the above .

Weegy: all the above
Expert answered|mythmoh|Points 4047|

User: When considering all of the ordinary matter and Dark matter in the Universe, Dark Matter comprises about ________ . Answer a. 25 % b. 50 % c. 75 % d. 95 % .

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Question
Asked 2/27/2012 3:34:01 PM
Updated 5/29/2022 5:01:41 PM
1 Answer/Comment
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When considering all of the ordinary matter and Dark matter in the Universe, Dark Matter comprises about 25 %
When considering the total energy component of the universe, current estimates show that around 68% of the universe is dark energy, while 27% is dark matter.

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Added 5/29/2022 5:01:41 PM
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