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.
Answer: the answer is B
Explanation: the republic is first since it starts off at 1949 then the great leap that was in the 1958 after all that the last one would be economic reforms since its counting the data and was dated at 1978
<span>The main cause of the mexican revolution was
</span><span>b. growing pressure from the united states for a democratic form of government.
</span>
