Booker t. washington urged african americans to:
a. reject segregation and fight for equality with whites.
b. move back to africa to escape american racism.
c. work hard and achieve economic success.
d. move to the north to avoid lynching.

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.

the correct answer is b

demand is the need and oportunity to buy a given good or service.