Which part of the classical music definition makes it hard to classify modern music?

artistry
universal and timeless appeal
both of the above

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

What impact did entry into ww1 have on life in the us?

How might hammurabi’s code have prevented a single ruler from imposing,or forcing his or her will on people