Question

Which difficulty did the builders of the transcontinental railroad have to overcome?

bridging the Grand Canyon and Rio Grande River


building on the wet, marshy soil of the Great Plains


meeting the demands of skilled union workers


providing supplies to build tracks and support workers

Answer 1

Answer: D.

Explanation: Took the quiz!!!!!!!!!!!!!!!!!!!!!!!

Answer 2

D.

Step-by-step explanation:

D. Providing supplies to build tracks and support workers.

Hope this helps ☝️☝☝