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.

1.3x - 2 - (3.3x + 5) = 2x + 1

1.3x - 2 - 3.3x - 5 = 2x + 1

-2x - 7 = 2x + 1

-7 = 4x + 1

-8 = 4x

x = -2

1.a)britain

2.b)spain

3.c)french

4.d)portugal

explanation: