3. overall, did the efforts of the labor unions have a positive impact on workers’ lives and jobs? explain.

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

Read the passage below. which of these statements describes the problem with including this passage as part of an explanatory essay? passage: the neolithic revolution changed everything for humans. before the n.r., you couldn't even plant food. i know you want to hear more, don't even deny it! o a. the tone is too dull and does not include a hook to keep the reader interested. o b. the tone is too objective and does not show the author's opinion. o c. the tone is too transitional and does not stay focused on one topic. o d. the tone is too informal and does not use appropriate vocabulary. surmit

Final nal exam questions 28. a drug addiction will make more important to you. a. maintaining friendships b. personal hygiene c. having a source of income d. mental health