What, in addition to geographic boundaries, might have kept the people of the huang river civilization from traveling to far-distant regions?

they feared that their bronze weapons would be no match for the iron weapons of ancient egypt.
they could get everything locally that they needed to survive and grow.
they had learned about the other river valley civilizations but feared contact would bring invasion.
they had not yet developed a system of money based on coins.

What is one way the spanish war of independence encouraged those in the colonies to seek new political and economic rights? colonies took advantage of spain’s weakened ability to prevent rebellion. the disruptions caused by the war encouraged colonial merchants to seek markets in the pacific. the exposure to french ideas through the war convinced many in spain to provide these liberties to the colonies. the war with france made spain tighten their political and economic hold on the colonies in desperation.

Overpopulation puts severe stress on the environment because .

Demographers can compare a choropleth map to a to understand how geography influences population distribution and there are no a,b,c,or d u have to find it out ur self asap