Why were europeans less vulnerable to most diseases than native americans?
a)
they had built up immunities.
b)
they never came into contact with them.
c)
native americans were less hygienic than europeans.
d)
native americans did not practice medicine like europeans.

answer: not really

explanation: the disadvantages of wikipedia are:

the advantages of wikipedia are

what are two things that greatly the american economy after the war? the huge buildup of u.s. military the beginning of the korean conflict the creation of the gi bill the marshall plan for nations

attacks by the seljuk. a devastating blow to the entire byzantine world was dealt by christian crusaders from the west. the venetians were eager to destroy byzantine power and offered the crusaders money, ships, and part of the spoils of war.

read more on -

most people such as me i dont have one but if   i did i would mostly likely quit my job if the economy was down cylcling that means less money if you go to a bigger job that is prospering you can earn more wage and still be able to feed yourself or why you work all people want more money then they have guarteed most people like me would switch jobs for a better one with higher wage