I believe it is..
<span>C. Whether it is moving toward us or away from us
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The other ones don't make sense, radiant energy is electromagnetic and gravitational energy. You can't tell how many planets are in its solar system from only this information. The number of galaxies is also impossible to tell. The only other one that could perhaps make sense is the distance to the center of its galaxy. But, this again is disproved as one star can't tell you the position of the center.
It would evaporate at a lower rate
What do you mean? What cloud are you referring to? Tell me in my comment section and ill tell u.
Answer:
The answer is 9.2 because by measuring the hypotenuse of the points you can accurately measure the angle.
Explanation:
Find points. Measure across.