Question

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Answer 1

There are many reasons:-
The change in the coarse of river
Because of deforestation
Some historians belives that frequent earthquake also took part in the end of this civilization.

Answer 2

Explanation:

The Harappa civilization was not built in a day and it was not destroyed in one day or for one reason. Scholars have come forth with several conjectures to explain the decline of Harappan Civilization.

Due to change in the climatic condition, the area lost fertil­ity and people were compelled to move else where.

Constant use of firewood for brick manufacture caused deforestation and minimized the rainfall.

The change of course of the river Indus transformed it into a tract of sand and affected the fertility.

Natural calamities like earthquake and cyclones adversely affected the normal life.

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