Multiple choice

__________ is/are the building block(s) of the universe.

  1. Sun

  2. Meteors

  3. Stars

  4. Galaxies
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Galaxies are the fundamental building blocks of the universe, containing billions to trillions of stars, gas, dust, and dark matter bound together by gravity. They range from dwarf galaxies with 100 million stars to massive giants with 100 trillion stars. The observable universe contains over 2 trillion galaxies. Stars (like the Sun) exist within galaxies, and meteors are tiny debris.

Keep practicing — related questions