mun23 wrote:
The enormous distances between stars are not spaces entirely devoid of matter . The interstellar spaces are filled with ‘dust’: very low density matter. This miniscule amount of matter, spread over almost infinite distances, acts like a curtain obscuring the stars that lie behind. If it were not for this material we would see no dark patches in the sky atnight: the sky would be entirely covered with stars .
The two parts in boldface play what roles in the argument above?
A. The first is a
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