Question

what could have been the possible reason
behind the end of the Harappan civilization..
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Answer 1

Answer:

Explanation: 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.

The Harappan civilization once extended across the plains of the Indus River from the Arabian Sea to the Ganges. ... The civilization developed about 5,200 years ago, and slowly disintegrated between 3,900 and 3,000 years ago — populations largely abandoned cities, migrating toward the east.

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Answer 2

Answer:

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Explanation:

Many scholars believe that the collapse of the Indus Valley Civilization was caused by climate change. Some experts believe the drying of the Saraswati River, which began around 1900 BCE, was the main cause for climate change, while others conclude that a great flood struck the area.

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.