Answer:
C. Jet engine
Explanation:
Reasons:
common sence nun of the other ones would be useful during world war ||
it was invented 1791, 1928
<span>a)groups of militant university and high-school students formed into paramilitary units to help Mao combat his enemies
'learn revolution by making revolution'</span>
Ensuring C) domestic tranquility means ensuring peacefulness or calmness. Domestic tranquility refers to peace to peace at home. It can be applied to family as well as to states. When referring to states domestic tranquility refers to peace kept among states as set out in the Constitution. It includes the federal governments rights to end rebellions and smooth out tensions between states.
A failed revolution in Germany" is not true. The revolution that was taking place in German was in fact quite good at mobilizing workers, unfortunately mostly for militarization.
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Hope this helps!!!!
-Lexi
