Answer:
The Indus Valley Civilization declined around 1800 BCE, and scholars debate which factors resulted in the civilization's demise.
How did The Indus Valley Civilization come to and End?
Many historians believe the Indus civilisation collapsed because of changes to the geography and climate of the area. Movements in the Earth's crust (the outside layer) might have caused the Indus river to flood and change its direction.
Others think its change in weather conditions.
Least historians think its the Aryans from their North side of their civilization, and the rest think its monsoons.
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