When light crosses the boundary between layers with different densities, the light is refracted. (A).
The value of the underlined 8 is, hundred billion's. Hope this helped!
Hi, the answer for this question is element!
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~Nate
The observable universe consists of galaxies and other matter that can, principally, be seen from Earth because the light signals have had time to reach us. Not everything in the sky is the way it is when we see it, because of the distance the light travels to reach us.
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