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Hef Hef
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6 years ago
Stars spend about 90% of their lifetime on the main sequence.
A) True
B) False
Textbook 
The Essential Cosmic Perspective

The Essential Cosmic Perspective


Edition: 7th
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jhatch16jhatch16
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6 years ago
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6 years ago
This helped my grade so much Perfect
loki1345
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I appreciate what you did here, answered it right Smiling Face with Open Mouth
kriggs62
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Just got PERFECT on my quiz
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