Multiple choice general knowledge

What famous North American landmark is constantly moving backward?

  1. Kalandula Falls

  2. Niagara Falls

  3. Livingstone Falls

  4. Blue Nile Falls

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

Niagara Falls experiences erosion at its base, causing the falls to gradually retreat upstream. The edge moves backward through rock erosion, making it a landmark that constantly shifts its position.