Explain
why the drop in those at the poverty level in the late 1960's and the rise
in the 1980's.

Do humans change their physical environment to adapt or do humans adapt themselves to their physical environment?

Match the following italian renaissance artists to their works.

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