Which factor best explains the population distribution of eastern China? *

OMountains
OWinters
OTropical Climates
OProximity

Historians are concerned with the accuracy of their writings and readings but are also aware of the inability of authors to know every angle of every story biases, perspectives, beliefs, and a variety of other differences history being told by one person at a time no one being totally accurate, as hard as we try really need on this, and you^^

Which events are correlated but do not necessarily have a causal relationship?

How did american entry into world war i affect the allied powers?