Question

Which may have been a reason for the decline of civilization in the Indus Valley?

a. Major sandstorms destroyed the crops.
b. Disease destroyed much of the population.
c. Unrelenting wars destroyed the villages.
d. Craftsmen and laborers could no longer make a living.

Answer 1

One thing that may have been a reason for the decline of civilization in the Indus Valley was "b. Disease destroyed much of the population," since this is the leader theory among historians.