Answer:
Diseases ,currency, culture,
ohhh sorry please delete my answer if you can. i read it wrong :(
Answer:
the reason people did not like locomotives is because it used to much gas . people could die easily , and they would break easily
The slave trade encouraged African nations to wage war and disrupted local cultures and economies. This in turn resulted in a failure to industrialize, making the nations of Africa far more susceptible to European colonization.