How did the geography of china benefit the new chinese civilization? a the road system permitted travel and trade to outside cultures. b the mountains offered a refuge for criminals. c flooding of the huang he river washed trash away from the housing structures. d the mountains and rivers isolated china from invaders and allowed chinese culture to evolve without outside influence. (24 )

alliances in ww1 were different from ww2 because the entente in ww1 made up of serbia,russia,france,britan,japan and italy later america  and all allied in a sort of balance of power and too keep germany,austria-hungary,and the ottomans down. russia allied the serbians in order to exert its influence in the balkans while france allied the russians because france was still in dismay and insulted after the defeat to the germans during the unification of germany and britian allied the belgians after the germans invasion of belgium.in ww2 the alliances were in a preemptive attempt to deter any further wars into happening while germany and italy allied since they were insulted and humiliated after the previous war while also sharing a similar ideology of facsim along with japan which all 3 had a want for world domination and agreed to assist one another in the endevours 

explanation:

studies show tha in 7.5 billion years from now, the expanding sun will engulf, and destroy, the earth.