Why do you think corn became the major crop of native american people living in different environments?
explain.

After the Colombian exchange, corn spread throughout Europe and was a crop that peasant and even serf families could grow for themselves.

the court ruled that a state law that banned abortions (except to save the life of the mother) was unconstitutional

hope this : )

the steam engine.

the locomotive.

the telephone.

the telegraph.

the internal combustion engine.

the rifle.

ironclad ships.

electricity/light bulb.