What evidence can be used to show that space is not a vacuum?
A)ultraviolet radiation emitted by dust
B)narrow emission lines seen in stellar spectra
C)the presence of bright nebulae
D)the blue colour of stars seen near dark regions

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The Answer of What evidence can be used to show that space is not a vacuum?
A)ultraviolet radiation emitted by dust
B)narrow emission lines seen in stellar spectra
C)the presence of bright nebulae
D)the blue colour of stars seen near dark regions

What Evidence Can Be Used to Show That Space Is