WORLD HISTORY

Detailed explanation-1: -Many researchers believe that the main reason for the decline of the Harappan culture was caused by environmental factors, such as floods and earthquakes. Ans. According to research, there was physical evidence to prove that the decline of the Harappan culture was caused by flooding and drought.

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: -Earthquakes and other epidemics could have been the cause for the abrupt end of the civilisation.

Detailed explanation-4: -Harappan society entered a period of decline about 1900 B.C.E. There is evidence of deforestation as woodlands were cleared to create more arable land to feed a growing population. This deforestation in turn led to reduced rainfall and erosion of the topsoil, as a result of which the area soon became a desert.