The explorers who tried to find a passage to the east by sailing around south america included all except:

a)magellan
b)drake
c)cortes

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The constant presence of diseases or infectious agents within a given geographic area or population group. it may also refer to the usual prevalence of a given disease with such area or group. it includes holoendemic and hyperendemic diseases. a holoendemic disease is one for which a high prevalent level of infection begins early in life and affects most of the child population, leading to a state of equilibrium such that the adult population shows evidence of the disease much less commonly than do children (malaria in many communities is a holoendemic disease). a hyperendemic disease is one that is constantly present at a high incidence and/or prevalence rate and affects all groups equally. so probably family history.

I'm not going to write an entire essay for you but i can summarize the spanish american war for youthe spanish american war starter in 1898 between the u.s. and spain after the u.s.s maine was sunk in havana harbor. we wanted their colonies and we had steel production so we had a steel fleet and literally destroyed the entire spanish armada in the philippines with only one loss. which was a person being crushed on a ship by a box. remember because of the bessemer process we had more steel and steel is stronger than iron. steel guns can shoot 2 miles while iron guns can shoot 1 mile so we just stayed out of range and destroyed them all. we beat the spanish in one year and we got puerto rico, guam, and the philippines as territories and cuba was left as a free country. also we treated everyone worse than the spanish and stole all the territories resources for ourselves.