Discuss how rivers help geographers understand how civilization developed.

Explanation:

Civilizations developed around rivers because their waters provided a place to drink and hunt such things as fish and hunt wounding animals who came for a drink. The people would use the water from the rivers for farming.

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.