Which advance made a network of railroad lines possible? a. the air brake c. the convertible berth b. a standard gauge d. the dining car Which advance made a network of railroad lines possible? a. the

asked Jan 28, 2021 48.9k views

2 votes

8.1k points

Please log in or register to add a comment.

2 votes

Answer:

Explanation: because I just did the quiz and got it right

Auron answered Jan 29, 2021

by Auron

7.3k points

4 votes

Answer:

A standard Gauge

Step-by-step explanation:

I think thats right

7.1k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.2m questions

10.9m answers