When it comes to periodization, which of the following events is the best example of a turning point? 1.anti communist crusade 2.the fall of the berlin wall 3.growing economic inequality 4.arguments over gun control

because its important to learn about other countries and how high tech they are compared to us. also its good to learn about other cultures and how ours differs and in common also we need to learn about companies that we still buy since they ship it here.

ba geologist finds four sedimentary rock she determines that no geologic events have shifted the layers she labeles them a,b,c,dbfrom top to bottom