In one or two sentences, state thw differebce betweeb primary sources and secondary sources​

Primary sources provide direct or firsthand evidence about an event, person, or object while secondary sources were produced sometime after an event took place. Unlike primary sources, secondary sources do not provide firsthand evidence.

Explanation:

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explanation:

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on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.