What is one measure of how much goods and services cost at a particular point in time?

Which document does garrison quote from to convince the public that slavery should be abolished?

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

One idea which permiates mande culture is the idea of dual gendered twinship. true false