Answer:
The correct answer is B. The smallest increases of lead correspond to the addition of lead to car fuel.
If your choices are the following:
<span>A) Mexican immigrants
B) Native Americans
C) African Americans
D) Irish Americans
Then the answer is </span>A) Mexican immigrants. The <span> industrial sectors </span>in<span> the </span>Midwest<span>, the net flow of Mexican American migrants occurred from the </span><span>Southwest.</span>
It was significant because it ended slavery in the United States after the Civil War; was passed by Abraham Lincoln.