How were booker t. washington's ideas discredited by later events ? a. his secret fight against disenfranchisement of african americans has not succeeded to this day .

b. the tuskegee institute and other schools he founded no longer exist .

c. he preferred " separate but equal " segregation , and it is no longer practiced .

d. he believed african americans should stay and work in the south but millions left in the first great migration .

switch around #3 and #4

explanation:

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thomas jefferson is the answer

the answer is c.

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incident infrared radiation is blocked. visible and ultraviolet radiation heat   earth.

earth radiates infrared radiation. infrared radiation is blocked and heats earth. visible and shortwave radiation heat earth.

earth radiates longwave radiation

longwave radiation is reflected downward longwave radiation heats earth