Because the soviets were with the nazis at that time and europe was going to be taken over during world war II
What happened after the collapse of the Ming Dynasty were:
1) there were natural disasters, war and rebellions.
2) earthquakes.
3) war against the Japanese.
4) unusually dry and cold weather.
5) plague
6) misrule
7) money crisis
8) rebellion from Li Zicheng's troops.
yes, B is right. %100 sure
Warm temperatures, Volcanoes, obsidian.
#1 is B 0.98 dollar's
#2 is (kind tough) but i think C
#3 is C January 2013 to March 2013
Hope this is what your looking for and is correct. Comment if one of the three is incorrect. It would help me a lot for your feed back(if any) and have a nice day.
-Harley