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Nataly_w [17]
2 years ago
8

By 1860 the United States had almost 31,000a.clipper ships.c.canals.b.miles of telegraph lines.d.miles of railroad tracks.

Social Studies
1 answer:
Solnce55 [7]2 years ago
5 0

Answer:

d.miles of railroad tracks.

Explanation:

On February 28, 1827, the United States launched its first train track, the Baltimore and Ohio railroad, and by 1860, the United States had almost 31,000 miles of train tracks.

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