They were displaced by white American settlers again.
The application of scientific knowledge for practical purposes, especially in industry.
One piece of information that the geographer might be able to convey more clearly than the economic historian would be exactly how geographic features such as mountains and lakes influenced the rise of certain societies.
Japan used its influence to promote trade between Asian and Western countries. Strong ties to China allowed faster immersion in Western culture. Japan's finished goods brought Asian influence to the Western world.
"B. <span>The English Channel helped protect the island nation of Britain from invasion" would be the best option from the list, since this Channel was oftentimes very choppy with strong currents. </span>