the steady-state theory suggested that the Universe has always existed and montanes the same structure this theory was later discredited due to What discovery?

the population grew a lot and was making more money

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

hope this .

plz give me brainliest!

imma have to go   the third option

sorry if i am wrong hope this

if i am right plz give me brainliest