How did the expansion of railroad lines affects the steamboat industry

It made commerce possible on a vast scale.

In addition to transporting western food crops and raw materials to East Coast markets and manufactured goods from East Coast cities to the West Coast, the railroad also facilitated international trade.

Explanation:

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It made commerce possible on a vast scale.

Explanation:

35 is your answer because i looked it up

australian plates collided into eurasian plates, and the himalayas formed. the andes mountain range the himalayas and the islands of japan form differently. the andes mountain range formed at the convergent boundary of an oceanic plate and continental plate.