Which is one way that the neolithic revolution contributed to the
development of ancient river valley civilizations?
a. as humans developed agriculture, they were able to stop following
herds of animals and build towns and cities.
b. as people moved from place to place hunting animals and
gathering wild plants, they built small cities at each place they
stopped.
c. river valley civilizations grew as people gathered to trade the
animals they hunted and wild plants they gathered.
d. river valley civilizations grew because people needed to defend
themselves from growing groups of nomadic warriors.

option A

Explanation:

A. As humans developed agriculture, they were able to stop following

herds of animals and build towns and cities.

Explanation:

The Neolithic is the most important period in history. With the adoption of livestock and agriculture the first cities were created  in the fertile valleys, these were formed, the aristocracy, the division of powers, the war, the property, writing, population growth. In short, the pillars of the world in which we live arose.

saint clair’s defeat, (november 4, 1791), one of the worst defeats ever suffered by u.s. forces in indian warfare, precipitated by british-indian confrontation with settlers and militia in the northwest territory following the american revolution. despite specific provisions in the treaty of 1783 for the evacuation of its forts on the northwestern border, britain had failed to yield these lucrative fur-trading posts. in hopes of reclaiming lost hunting grounds with british support, a northwest indian confederation was gradually molded between 1785 and 1787, consisting mainly of shawnee, delaware, ottawa, iroquois, ojibwa, miami, and potawatomi. kentucky frontiersmen reacted to this threat by initiating raiding parties on native villages as early as 1788, and indian warfare flared up the following year.

your answer would be (b)