1. how did the united states respond when german u-boats sank the lusitania? by remaining neutral after germany agreed to limit submarine warfare by entering world war i on the side of the allied countries by increasing the amount of supplies sent to allied countries by barring all trade imports and exports with germany 2. which best explains the connection between ethnic diversity in the united states and support for neutrality during world war i? people in the united states came from many european countries and most shared a desire to be pacifists. people in the united states came from many european countries and most feared the loss of fellow countrymen. people in the united states came from many european countries and going to war meant returning home. people in the united states came from many european countries and going to war could affect their homelands. 3. which events i

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Answer to question 2:

More detail about the Lusitania incident:

Public outrage in the US against the Germans swept the nation following the sinking of the British ocean liner, Lusitania.  When a German U-boat (submarine) sank the Lusitania in May, 1915, over 1,000 persons were killed, including more than 100 Americans. The passenger liner was targeted by the Germans because they suspected weapons were being shipped to Britain in the cargo hold of the ship.  Germany managed to stave off American entry into the war at the time by pledging to stop submarine attacks.  

A couple years later, however, Germany resumed unrestricted submarine warfare.  There was also an intercepted telegram (the "Zimmerman Telegram") that showed Germany was trying to secure Mexico as an ally against the United States.  Those events in 1917 led the US to declare war on Germany in response.

Here's an an example of American feeling at the time of the Lusitania incident.  Gifford Pinchot, who had been the Chief of the US Forestry Service (from 1905 to 1910) , was quoted in the New York Times in May, 1915, after he had just recently returned from Europe. He asserted that Americans on the Lusitania (along with other passengers) were killed because an autocratic military empire was trying to dominate nations that were self-governing. His characterization of German intentions mirrored how President Woodrow Wilson later called on the USA to enter the war to "make the world safe for democracy."

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Explanation: