History, asked by Tan78, 11 hours ago

Why the ancient valley civilizations are not there nowadays what is the cause of their degradation?​

Answers

Answered by itzjkisok
2

Answer:

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.

Answered by harshini517
2

Answer:

One theory suggested that a nomadic, Indo-European tribe, called the Aryans, invaded and conquered the Indus Valley Civilization.

Many scholars now believe the collapse of the Indus Valley Civilization was caused by climate change.

The eastward shift of monsoons may have reduced the water supply, forcing the Harappans of the Indus River Valley to migrate and establish smaller villages and isolated farms.

These small communities could not produce the agricultural surpluses needed to support cities, which where then abandoned.

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