<span>''Roaring" economy of the 20s meant that investors could make wildly high returns on their investment in relatively small amounts of time, especially since there was practically no government regulation of investment under the Great Depression, which began with the crash of 1929. </span>
This code Duty, Honor, Country carries a high moral values according to General Douglas MacArthur
Explanation:
He explains the greatness of soldiers in his speech . He highlighted the fact that Doing one's duty for honoring one' country is the greatest sacrifice which an individual can ever do. He claims that such an honor to the country is necessarily of moral value. He also highlights the highest democratic aspect that civilian voices must argue the merits or demerits of the processes of government.
He concludes by saying that though he hears the crashing of guns, rattle of musketry arms and ammunition but in the evening he always thinks whether he had performed his duty in order to honor the country. Its patriotism and loyalty towards one; country which would make a eminent person like General Douglas MacArthur to deliver a though provoking and inspiring speech.
Answer: architecture, sewage systems, Roman numerals and concrete
Explanation: I just did the test
The silk road, I do believe. lolol