Question

question 1-2 earth’s galaxy contains billions of stars. some stars appear brighter than others. which of the following is the main re our sun is closer to earth. our sun is a much larger star. our sun is burning hydrogen. our sun is a young star.

Explanation:

To determine why some stars (like our Sun) appear brighter, we analyze each option:

• Option "Our Sun is closer to Earth": Apparent brightness of a star is highly affected by its distance from the observer (Earth). Closer stars appear brighter. The Sun is much closer to Earth than other stars in the galaxy.
• Option "Our Sun is a much larger star": There are many stars in the galaxy larger than the Sun, so size alone isn't the main reason for its apparent brightness from Earth.
• Option "Our Sun is burning hydrogen": Most stars burn hydrogen, so this isn't a unique reason for the Sun's apparent brightness.
• Option "Our Sun is a young star": The age of the star doesn't directly relate to its apparent brightness from Earth's perspective compared to distance.

Answer:

A. Our Sun is closer to Earth