What is the official language of china? a. falun gong c. han b. mandarin d. cantonese

Most criminologists agree that juvenile crime is less violent today than it was in the early 1990s. according to the text the reasons cited for this decline include what?

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

In some african american communities, unemployment was as high as percent.