What did president hoover do to offer a solution to the human problems of the depression in 1929?

Marine exptoration of oil uses seismic waves to locate oil in the seabed. what is a negative impact from seismic waves on the aquatic ecosystem of the ocean? a.seismic waves kill microoganisms b.seismic waves disrupts the sand and causes seafloor erosion c.seismic waves have virtually no adverse affects on marine life d.seismic waves damage the sonar that dolphins and whales use to orient themselves underwater

What was the ultimate result of the final solution?

How and why did british north american colonists fight a revolution to create a constitutional republic, the united states of america?