Answer:
After World War I,
B. The economy crashed because the railroads failed.
Explanation:
Why the railroads were so important-
The railroad industry was the largest employer outside agriculture in the US and involved large amounts of money and risk.
A large infusion of cash from speculators caused spectacular growth in the industry and in teh construction of docks, factories, and ancillary facilities.
A. Values
A person's values are what they believe is important and what is ethical in the their life. Values should control many aspects of your life, including what traits you find most admirable.
These should be the correct answer
1. Crust
2. Mantle
3. Inner core
4. Outer core