Which of these was an important trade system in the New World? a. The uranium trade with Mexico.

b. The spice trade with Asia.

c. The camel trade to Native Americans.

d. The slave tradeoff both Africans and Native Americans.

D

Explanation: Slave trade during the early years of the New World was crucial because slaves at the time were the driving force of economy, unfortunately.

i think its provide for the common defense

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.