Answer:
Coastal Plains.
Explanation:
Coastal Plain's life-giving soil is good for farming.
Peanuts, tobacco, and soybeans grow well there.
Waves hit the coast at an angle and form currents in the surf zone
The first Transcontinental Railroad in the United States was opened on May 10th, 1869- the correct answer is:
in the 1860s.
The plans to build such a Railway have started as early as 1930s.
It actually didn't connect both coasts, but ended far from the East Coast.