Multiple choice

Which is NOT a theory that could explain why the Indus people disappeared?

  1. foreign invaders

  2. severe drought

  3. spread of disease

  4. over immigration

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

The decline of the Indus Valley Civilization is attributed to factors like climate change (drought), flooding, or shifting river courses. Over-immigration is not a recognized historical theory for their disappearance.