Which of the following statements is true about Germany’s use of U-boats? a. an underwater blockade was for bidden by the German government
b. u-boat warfare was an attempt to get the United States to enter the war
c. u-boat warfare was the German response to the British blockade
d. an underwater blockade was legal under international law

This researchers data could him determine which of the following types of information about great britain during the industrial revolution

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

Indian scholars invented all of the following that we use today except .