How did the Indus river have an effect on the Indus river valley civilization

By 1800 BCE, the Indus Valley climate grew cooler and drier, and a tectonic event may have diverted the Ghaggar Hakra river system toward the Ganges Plain. The Harappans may have migrated toward the Ganges basin in the east, where they established villages and isolated farms.

a. because the u.s. was the leading with the most technology, economy, etc. also was teamed with other allies witch boosted the economy and materials to improve technology and use it.

the correct answer is ''the programs costs have risen dramatically in the recent past'' hope this !