Answer:
Speciality is a pursuit, area of study, or skill to which someone has devoted much time and effort and in which they are expert
Answer:
B.new food crops, which improved the European diet
Explanation:
Answer A, C, and D were introduced to the Americas, not Europe. Some diseases, like syphilis, were brought to Europe but the majority were brought from the Europeans which greatly impacted the population of Native Americans. Western Europe was mostly impacted by the introduction of new crops.
Class struggle and political revolution is necessary for socialism to emerge. They think that everyone will just adopt it, without struggle or a fight, if it's represented convincingly.
Afghanistan became an independent state when Amanullah established an alliance and signed a treaty of friendship with the Soviet Union. Hope this helps if you have any questions please feel free to message me;)
