This explorer helped map the southwest

Could I get more context please? Then i could help better.

Explanation:

nativists tried to get rid of the immigrants as they thought they were going to ruin the u.s.  

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