Question

which set of celestial objects is correctly arranged from smallest to largest? choose 1 answer: a galaxy group, solar system, galaxy, earth b galaxy group, galaxy, solar system, earth c earth, solar system, galaxy, galaxy group d earth, galaxy, solar system, galaxy group

Explanation:

To determine the correct order, we analyze the size of each celestial object:

• Earth is a planet, the smallest among these.
• A solar system consists of a star (like the Sun) and its orbiting objects, including Earth, so it's larger than Earth.
• A galaxy is a collection of billions of stars, solar systems, and other matter, so it's larger than a solar system.
• A galaxy group is a collection of multiple galaxies, making it the largest here.

Now we check each option:

• Option A: Incorrect order (galaxy group is largest, Earth is smallest, this order is reversed in parts).
• Option B: Incorrect order (galaxy group > galaxy > solar system > Earth is wrong as Earth is smaller than solar system, galaxy, and galaxy group).
• Option C: Earth (smallest) → solar system (larger than Earth) → galaxy (larger than solar system) → galaxy group (largest) – this is correct.
• Option D: Incorrect order (galaxy is larger than solar system, so Earth → galaxy → solar system is wrong).

Answer:

C. Earth, solar system, galaxy, galaxy group