Which was a result of the introduction of the horse to north america by the spanish? a. eastern woodland indians could plow their fields more quickly. b. pacific northwest indians drove the spanish off their lands. c. plains indians could hunt more efficiently. d. southwestern indians no longer needed to farm.

C :Plains Indians could hunt more efficiently.

Explanation:

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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.

affirmative action refers to the policies that take gender, race, or ethnicity into account in order to promote equal opportunity.

employers subject to title vii are prohibited from taking race or sex into account in any employment decisions. aa is a penalty for having any job group substantially statistically "underutilized" in any race or either sex. the employer must take steps to eliminate the underutilization, then stop, ending its aa efforts