Multiple choice general knowledge math & puzzles

It was during World War II that clothes with elastic waists were introduced. This is because the metal used in ..... was badly needed for the war.

  1. needles

  2. cloth fasteners

  3. buttons

  4. zippers

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

During World War II, metal was urgently needed for weapons, vehicles, and military equipment, so the government discouraged its use in civilian goods. Zippers contain significant metal components, so manufacturers replaced them with elastic waistbands to conserve metal resources. Buttons, needles, and cloth fasteners either used less metal or had no adequate elastic alternative.