How did the transcontinental railroad affect us commerce?
the railroad decreased commerce by making shipping more expensive.
the railroad increased commerce by making shipping easier and cheaper.
the railroad led to major corruption in business, which hurt commerce.
the railroad decreased commerce by making trading posts disappear.

The correct answer is B. The railroad increased commerce by making shipping cheaper and easier.

Transcontinental railroad made transportation of goods and services over long distances easier.

Those nations which were divided due to civil war were unified by the railroad making them superpowers.

Transcontinental transformed US by connecting San Francisco Bay and council Bluffs and transport was revolutionized. It benefited the US. with impact of economy.

then its a law the end