What was John F. Kennedy's "New Frontier," and what did it involve?

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 does the document of the birtish octopus is an uderlying cause of the world war 1

Which physical feature minimizes population density in northern africa?