Question

Give reason for the decline of the Harappan civilization​

Answer 1

Many scholars believe that the collapse of the Indus Valley Civilization was caused by climate change. ... By 1800 BCE, the Indus Valley climate grew cooler and drier, and a tectonic event may have diverted or disrupted river systems, which were the lifelines of the Indus Valley Civilization.

Answer 2

Answer:

1.population

2.natural disaster

3.agricultural

4.cutting trees