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doit_the_clown doit_the_clown
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7 years ago
The main component of cosmic rays is
A)   protons.
B)   gamma rays.
C)   electrons.
D)   nuclei of heavy elements such as carbon and iron.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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hyponoticahyponotica
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doit_the_clown Author
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7 years ago
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Ifekwunigwe
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Thank you, thank you, thank you!
hmonier
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I appreciate what you did here, answered it right Smiling Face with Open Mouth
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