The two major superpowers of the united states and the soviet union competed against each other in the development of advanced technologies such as nuclear missiles and rockets during the cold war.

a) true

b) false

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!

logging hope this

darwinism is survival of the fittest there for social darwinism is the survival of the wealthiest

not sure but thinking i'ts cause the government was broke. not sure