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

possible the invasion of room could have been avodiable but the people of rome were to stubboron and to wealthy the kingdoms saw them as a threat if they dialred it downa   bit ten i dont think they wouldnt failed   china was not iacvvdoaible they caused war to much and were out of hand therefor that must have happened india i dont really know it could of

the second industrial revolution occurred in the u.s. beginning in the and its colonial empire allowed its many technological innovations to spread although the american industrial revolution wouldn't take full effect