Multiple choice general knowledge math & puzzles

The reason a granite block is mostly empty space is because the atoms in the granite are:

  1. Held together by electrical forces

  2. Invisible

  3. Mostly empty space themselves

  4. Not as close together as they could be
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Like all matter, granite is composed of atoms. Atoms consist of a tiny, dense nucleus surrounded by a relatively vast cloud of electrons. Because the nucleus is so small compared to the overall size of the atom, the atom (and thus the granite) is mostly empty space.

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