How did the dust bowls change United state.?

(What happened)

The massive dust storms caused farmers to lose their livelihoods and their homes. Deflation from the Depression aggravated the plight of Dust Bowl farmers. Prices for the crops they could grow fell below subsistence levels. In 1932, the federal government sent aid to the drought-affected states.

Roosevelt believed it was the federal government`s duty to help the American people get through the bad times like the Dust Bowl. During the first three months of his presidency, a steady stream of bills were passed to relieve poverty, reduce unemployment and speed economic recovery.

How its changed US( How we are preventing another one)

Texas has the most acres of any state enrolled in the federal Conservation Reserve Program, which seeks to prevent another Dust Bowl by paying farmers to plant grass instead of crops. But the program has fallen on hard times, and its participants worry they will, too.

assuming that you are talking about the one in egypt: hecka oil

explanation:

the  seven  days  battles  were  a series of seven battles over seven  days from june 25 to july 1, 1862, near richmond, virginia,  during  the american civil war. the  seven  days ended with mcclellan's army in relative safety next to the james river, having suffered almost 16,000 casualtiesduring  the retreat.