Question

question 19 (mandatory) (1 point)
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one of the most important reasons for the american entry into the first world war was
a) an interest in extending american economic and cultural ideals throughout europe after the war ended.
b) woodrow wilsons idealistic interest in extending the fourteen points throughout postwar europe.
c) the german u - boat attacks on neutral and unarmed american ships.
d) england and the united states had a longstanding contractual obligation to aid each other in their international conflicts.
question 20 (mandatory) (1 point)
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the most common use of aircraft in the first world war was for
a) bombing enemy cities.
b) reconnaissance.
c) deploying troops and supplies quickly and safely.
d) signaling with flares, so troops on the ground could see.

Explanation:

Question 19

To determine the correct answer, we analyze each option:

• Option a: American entry into WWI was not primarily for post - war ideal spread.
• Option b: The Fourteen Points were more of a post - war vision, not the main reason for entry.
• Option c: German U - boat attacks on American ships (like the Lusitania) violated neutrality and were a major factor pushing the US into the war.
• Option d: There was no long - standing contractual obligation between England and the US for mutual aid in conflicts.

We evaluate each option based on WWI aircraft usage:

• Option a: Bombing enemy cities was not the most common use initially; aircraft were less capable for large - scale bombing.
• Option b: In WWI, aircraft were most commonly used for reconnaissance (spying on enemy positions) as they could gather intelligence from above.
• Option c: Aircraft in WWI were not capable of deploying large numbers of troops and supplies quickly and safely.
• Option d: Signaling with flares was not the primary use of aircraft.

Answer:

c) the German U - boat attacks on neutral and unarmed American ships.

Question 20