In the 1880's, how were various European nations able to begin expanding into Africa and eventually gain control over most of the continent?
the development of quinine helped fight
African diseases

Africans lacked tribal unity

all of the above

Europeans had better technology

i don't know why don't you google it?

the answer is b.2008 and 2012 were presidential election years.

john maynard keynes developed new economic theories in response to the : b) great depression of the 1930s. his theories are so important that they are known as "keynesianism". in his works he supports the idea of a government with deeper involvement and intervention to end the great depression.