For what reasons did the nazis change the extermination methods?

What was the result on the u.s. economy because of the major changes in atlantic shipping prior to and during the war of 1812?

Why was the united states motivated to establish the open door policy? a. the policy guaranteed american commerce with china. b. the policy supported the chinese nationalist cause. c. the policy led to a gain of american colonies in asia. d. the policy claimed damages from the chinese.

What was an effect of segregation on businesses