Multiple choice general knowledge sports

What famous North American landmark is constantly moving backward?

  1. Tower of pisa

  2. Eiffel Tower

  3. Niagara Falls

  4. Statue of Liberty

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

Niagara Falls is gradually eroding backward, moving upstream toward Lake Erie at a rate of about 1 foot per year due to water flow wearing away the rock. The Tower of Pisa leans but doesn't move backward, the Eiffel Tower is stable, and the Statue of Liberty is stationary.