Question

1. which of the following disqualifies a celestial object from being considered a star?

○ stars are fueled by nuclear fusion.
○ stars release energy in the form of electromagnetic radiation.
○ stars have a fixed path or orbit.
○ stars are gaseous and massive.

Explanation:

To determine which option disqualifies a celestial object from being a star, we analyze each:

• Stars are fueled by nuclear fusion (correct characteristic of stars).
• Stars release energy as electromagnetic radiation (correct, e.g., light).
• Stars do not have a fixed orbit; planets, moons, etc., have orbits, but stars (like our Sun) are part of a galaxy and move, but not in a fixed "orbit" as the option implies. Celestial objects with fixed orbits (like planets) are not stars.
• Stars are gaseous and massive (correct, they are made of gas and have large mass).

Answer:

C. Stars have a fixed path or orbit.