Answer:
Groughts, wars, earthquakes and climate changes have been suggested for the decline of the civilization.
Step-by-step explanation:
- The Indus valley civilization developed in the bronze age, along the northwestern region of South Asia. The civilization was noted for its design and architecture also was noted for its style of writing and handicrafts.
- The Punjab province consists of most of the history of the civilization. Sir M wheeler has suggested the invasion of the Indo-European tribe from central Asia that caused the decline of the civilization.
- As the skeletons found to belong to the period of abandonment. There also have been theories related to climate change and droughts, as scholars believed a decline in the trades.
- Between Egypt which caused the collapse of civilization. Other aspects such as the occurrence of earthquakes have also been suggested.