Which of the following is an example of how Peter the Great reformed Russia? A. He ended the practice of serfdom.
B. He withdrew from territories occupied by earlier Russian rulers.
C. He changed the Russian alphabet.
D. He cut back on military spending and training.

the name of the theory is landmass theory.

according to my research (britannica and quizlet) the first settlements were along the huang river because it could give the crops more fertile soil that really it out. this was due to the yellow slit caused by floods of the river.