1. During which period did the Indus Valley, or Harappan, Civilization flourish?
From 2500 B.C. to 1750 B.C.
Explanation
The Harappan Civilization flourished between 2500 B.C. and 1750 B.C. The period from 3000 B.C. to 2000 B.C. is an incorrect shift to an earlier start and later end.