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the age of the Earth is: a. 4.56 million years b. 3.5 billion years c. 4.56 billion years d. 14 billion years correct answers c. 4.56 billion years your semester at sea take an unexpected turn when the ship's captain decides to teach you a lesson by throwing all the navigation equipment overboard. Thankfully, your mom purchased you a nice chronometer wristwatch when you graduated high school in Greenwich, England. Always wanting to know when it's a good time to call mum, one of your many dials says that it is 3:30 pm back in Greenwich while it is exactly 12:00 pm on the boat. You therefore are able to tell the captain your longitude is: a. 37.5 W b. 45.5 E c. 52.5 W d. 60.5 E correct answers c. 52.5 W the diagram immediately below illustrates ________, an energy source common to many stars: a. accretion b. condensation c. fusion d. fission e. isotope molecular resorption correct answers c. fusion the use of dispersants as a strategy to lessen or mitigate oil spills in the marine environment is being questioned, as noted in class, owing to research that shows that it lightly affects: a. the migration patterns of shorebirds b. the DNA of whales impacted by this c. the productivity of crustaceans living on the seafloor d. the air quality in coastal communities correct answers b. the DNA of whales impacted by this discoveries in ocean exploration, especially over the last century, have resulted largely from: a. increased awareness in the size and extent of the world oceans b. the availability of "enabling technologies" c. global climate change d. nutrient and mineral possessing foods (especially fish) correct answers b. the availability of "enabling technologies" looking at the "ocean surface temperatures" portion of the above graph, what might be a reasonable explanation for the for the relatively modest temperatures range in the southern hemisphere from febuary (summer) to august (winter)?: a. the cloud cover in the southern hemisphere limits heating and cooling effects b. the effectiveness of water to buffer (maintain) temperature owing to its high head capacity c. the well-known abundance of salty ocean currents in that area of the world