Volcanoes
a. can cause tsunamis
b. are caused by seismic waves
c. carve valleys out of flat areas
d. are the leading cause of flooding

the transatlantic slave trade radically impaired africa's potential to develop economically and maintain its social and political stability. the arrival of europeans on the west african coast and their establishment of slave ports in various parts of the continent triggered a continuous process of exploitation of africa's human resources, labor, and commodities. this exploitative commerce influenced the african political and religious aristocracies, the warrior classes and the biracial elite, who made small gains from the slave trade, to participate in the oppression of their own people. the europeans, on the other hand, greatly benefited from the atlantic trade, since it allowed them to amass the raw materials that fed the industrial revolution to the detriment of african societies whose capacity to transform their modes of production into a viable entrepreneurial economy was severely halted.

native peoples of america had no immunity to the diseases that european explorers and colonists brought with them. diseases such as smallpox, influenza, measles, and even chicken pox proved deadly to american indians. europeans were used to these diseases, but indian people had no resistance to them.

1. between 1754 and 1763

2. a land bridge between siberia and alaska that was exposed during the most recent ice age when the waters of the bering strait receded.

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it's time we changed our approach, and we can start at home. by stephen m. walt . | april 25, 2016, 12: 06 pm. us and afghan soldiers listen to a mission briefing before a the idea that the united states could march in, depose the creating democracy in a foreign country is a vast social engineering project

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