What were the core principles of the first Protestant denominations that led to the period known as the Reformation? How did further Protestant denominations differ from the original ideas of Martin Luther? Please be quick. I am on a timed exam.

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