Why were the arabs able to conquer much of persia and parts of byzantium

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

4. any area in which one nation has power over another; i.e. - this happened to china when it was defeated by japan

One of the person important products for britain's manufacturers was