The answer is b. conquest and diseases brought by Europeans changed the native American way of life forever.
The word Christianity taught them to believe he was Christ and the savior they had been waiting for.
John brown was a abolitionist who made the bleeding Kansas and made the north and south more tense
The introduction of the cotton gin by Eli Whitney had a great effect on the plantations, as well as slavery. Before the cotton gin was invented, the production of cotton was a… painstaking business. To remove the cotton fiber from the seeds took a great amount of time.
Explosion and lava need to be observed best i can do tell me if this helped
