hoover
Glass-Steagall Act of 1932
Federal Home Loan Bank Act
Hawley-Smoot Tariff
The Stinson Doctrine
Federal Farm Board
not hoover
Fair Labour Standards Act
Federal Emergency Relief Act
Civilian Conservation Crops
Agricultural Adjustment Administration
Answer:
the use of poison gas and machine guns
Explanation:
Aerial attacks weren't really a thing, unrestricted submarine warfare was a reason why the US joined the war but not a factor in high casualty rates, and blimps using direct artillery fire isnt as practical as machine guns and poison gas
In regard to regulating companies, Roosevelt wanted them to serve the public in the best way possible.
D) second industrial revolution
