WORLD HISTORY

Detailed explanation-1: -How did Harappan planners respond to flooding from monsoon season? They developed water management that included drainage systems.

Detailed explanation-2: -Located on the bank of Indus River in the southern province of Sindh, Mohenjodaro was built around 2400 BC. It was destroyed at least seven times by the floods and rebuilt on the top of ruins each time as there is evidence of silt on houses and streets of the civilisation.

Detailed explanation-3: -Indus civilization, also called Indus valley civilization or Harappan civilization, the earliest known urban culture of the Indian subcontinent. The nuclear dates of the civilization appear to be about 2500–1700 bce, though the southern sites may have lasted later into the 2nd millennium bce.

Detailed explanation-4: -drying up of river. deforestation. floodings. loss of control by the rulers and people abandoned Sind and Punjab.