What new form of music swept the nation in the 1950s a. chamber music b. hip-hop c. jazz d. rock-and-roll

D Rock-and-roll is correct

During the winter, and spring, Pacific storm systems bring Hawaii and the western United States most of their precipitation. ... The El Niño–Southern Oscillation affects the precipitation distribution, by altering rainfall patterns across the West, Midwest, the Southeast, and throughout the tropics.