Why do desert and mountain regions have fewer people than the other regions

This cartoon references the supreme court case from 1896 which made segregation of the races legal. what was the name of this case

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

Which statement best summarizes how interpreted in very strict terms government have changed over time