Asked by Anonymous

Which invention was the basis for the major developments in American transportation?
a.steam engine **
b.wagon axle
c.canal lock
d. gold spike
Answered by Ms. Sue
Right.
Answered by Anonymous
thanks
Answered by Ms. Sue
You're welcome.
Answered by Will
thanks you helped me
Answered by Joey
steam engine
Answered by eli
i do not know maybe steam enjine
Answered by S
gold spike
Answered by Anonymous
steam engine
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