Biology, 09.12.2019 19:31 keiryporthillo

What is the primary visible color of an emission nebula? a. red due to ionized hydrogen atoms b. blue due to ionized helium atoms c. red because of reddening by dust d. black, because of dust e. blue from the scattering of light off the tiny molecules

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What is the primary visible color of an emission nebula? a. red due to ionized hydrogen atoms b. bl...

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