3 .) they were very advanced, They had sewer systems and two story houses. Had a great bath which was the city center
5.) Historians don’t 100% know why but
Lack of weapons could means they were invaded and had nothing to fight with
There could have been major natural disaster and some believe even a earthquake
8.) Rig veda was the first veda of Hinduism
if this is a reading question make sure my answers line up with the reading
the ones that i didn’t answer go to crash course indus valley you can find most of the answers there