The answer is going to be B. The native people lacked natural immunities.
The Europeans, having already been exposed to these diseases, had already built up their immune system to the diseases. The native people, on the other hand, had not been exposed to these diseases, and thus died because of it.
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At this time period, people were looking for jobs in factories so they flocked to the cities where factories were becoming popular.
The correct answer to this open question is the following.
The English colonies in North America were part of a larger Atlantic community in that English people were the ones that decided to leave Britain for different reasons in order to start a new life or in pursuit of better opportunities to make money. Different reasons for different kinds of people.
For instance, the case of the founders of the Jamestown, Virginia colony of 1607. They were sponsored by the English corporation, the London-Virginia Company to make the trip to the Americas, work the land and exploit the raw material and make a profit. But they were still part of a larger Atlantic community.
Or the case of the Puritans that arrived at the coast of North America in 1620 to found the Plymouth colony. They were strict religious men and women that left Britain due to the religious persecution of the Church of England. They opted to make the trip to establish a new place to practice their religious teachings freely.
The geography influenced the economic development of New York, Boston, and Charleston, because they were all ports and this helped with trade (both import and export). There were many ships coming in and coming out and also due to this, many communities started settling there and towns started booming due to the growing amount of people.
Answer:
Most liquid fuels in widespread use are derived from fossil fuels; however, there are several types, such as hydrogen fuel (for automotive uses), ethanol, and biodiesel, which are also categorized as a liquid fuel. Many liquid fuels play a primary role in transportation and the economy.