Assignment: seismic waves research current events exploration for this lesson's graded assignment, you will do research on the internet to learn more about the role seismic waves play in earthquakes and tsunamis. your essay will address one of the following questions: • how does an underwater earthquake cause a tsunami? • why do some earthquakes cause more damage than others? here is a website and some keyword search terms to you get started. usgs earthquakes keywords search terms: earthquake formation, p wave, s wave, tsunami, earthquake travel, analyzing earthquakes your essay should do the following things: • discuss how the different types of waves are formed and describe how the waves travel • explain how scientists use waves to track and analyze earthquakes • cover recent events involving earthquakes and/or tsunamis that illustrate the poin

Researchers conducted an experiment to identify the effects of three different hand sanitizers on the growth of bacteria. the researchers grew one type of bacteria in twenty-four identical covered petri dishes. then, they opened eighteen petri dishes and applied the three hand sanitizers to six petri dishes each. they left the remaining six petri dishes closed as a control group. when the researchers measured the growth of bacteria two days later, the six dishes that had no hand sanitizer showed the least amount of bacterial growth. the researchers concluded that not using any hand sanitizer would lead to the least bacterial growth. which statement best explains why the researchers’ conclusion was not justified? the experiment tested too many variables. the control group was not treated the same as the experimental group. the sample size of twenty-four petri dishes is not large enough. the single type of bacteria is not adequate to make any conclusions.