Scholars were not able to decipher the indus valley writings and don't know much about the civilization.

which statements describe current theories about why the indus valley civilization declined?

select 3 of the following.

1. people abandoned the cities to live in smaller villages.

2. pests destroyed the agriculture.

3. disease devastated the population.

4. a series of wars forced people to leave the area.

5. massive flooding disrupted farming.