Someone pls help me I will make you brain

Which of the following was the eventual result of the allied attempts to contain soviet expanion

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 role and side did italy fight on during world war 1? why did they change sides? write this in your own words.