PLEASE HELP all i need you to answer is 1-4 not 5

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

How did margaret thatcher de-escalate the cold war

Which of the following scenarios is the result of a lack of education or experience? a. a man dislikes hearing about the holocaust because he is a survivor. b. a burn victim doesn’t like to be near any flames. c. a child refusing to eat broccoli because of its color. d. a woman dislikes smokers because the smoke makes her cough.