Multiple choice general knowledge

Human thigh bones as strong as what?

  1. Steel

  2. Aluminim

  3. Plastic

  4. Concrete

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

The femur (thigh bone) is exceptionally strong and can withstand similar compressive forces to concrete - roughly 1,700-2,000 psi before fracturing. Steel is much stronger, while plastic cannot compare. The bone's strength comes from its dense cortical structure and unique collagen-hydroxyapatite composition.