<span>Agriculture was key to the development of modern "civilization" because by being able to grow food rather than getting it through trade or hunting, people were able to stay in one place instead of having to be where the food was. This also led to jobs because people became highly skilled in growing crops.</span>
Answer:
B - The sovereignty of all the states in the union was weakened.
This is known as the Columbian Exchange; option A. This includes for example Coffee and Chocolate (the plants); which are today to a great degree cultivated in a continent different than the one they originally evolved on.
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Colonial Vulnerability can be seen in the images of
~ wild savages attacking helpless colonists
~ colonists suffering from awful diseases and starvation
~ inhospitable places
After WW1, the huge empires started to develop a search of something called great power status, which is a international relationships concept who designates a nation who acts with own protagonism, running in any influence degrees or directly power in that context (political, military, economic, and in a very subtle way, thin power.
