What was one reason why sharecropping began in the south?
it was a way to take advantage of the south’s strong infrastructure.
the federal government required southerners to use this system.
the southern economy and farms had been destroyed during the civil war.
farmers were the only southerners who still had money after the civil war.

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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

The soviet union and the united states believed in two very different economic systems. what were the names of each?