D) Robert Fulton.
I have to have 20 characters so
The Dust Bowl was the name given to the drought-stricken Southern Plains region of the United States, which suffered severe dust storms during a dry period in the 1930s. As high winds and choking dust swept the region from Texas to Nebraska, people and livestock were killed and crops failed across the entire region.
Coal-burning factories and increased automobile usage has caused the greatest increase in "<span>A) air pollution," since in fact coal when burned is one of the worst pollutants. </span>
Answer:
1886
Explanation:
In 1886, under the leadership of Samuel Gompers, they organized themselves as the AFL, a loose federation that remained for half a century the sole unifying agency of the American labour movement.