1) Which did NOT contribute to the formation of Earth's early oceans? a) asteroids b) glaciers c) comets d) volcanoes 2) Which of Earth's oceans is the largest and deepest? a) Atlantic b) Southern Ocean c) Indian d) Arctic Ocean e) Pacific Ocean 3) What is salinity a measure of? a) how much oxygen is dissolved in water b) the temperature of salt water c) how much salt is dissolved in water d) the mass of water in a given volume 4) Which of the following areas is likely to have the highest salinity? a) the Mediterranean Sea (near the equator) b) the Nile River delta c) the surface of the Southern Ocean (with glaciers) d) deep part of the Pacific Ocean 5) What is the average salinity of ocean water? a) 107 PPT b) 330 PPT c) 35 PPT d) 55 PPT 6) As you descend (go down) through the water column in the ocean, which will occur? a) water temperature will increase b) variety of living things increases c) amount of light increases d) water pressure will increase 7) What is C? a) volcanic island b) mid-ocean ridge c) abyssal plain d) continental rise e) trench f) continental slope 8) Which feature is created on a convergent plate boundary? a) A b) B c) C d) D e) F f) G 9) In which zone would indicator species likely have and use bioluminescence? a) surface zone b) middle zone c) deep zone d) sunlight zone e) twilight zone 10) Which method of ocean exploration is safer, cheaper, and smaller (easier for discovering small spaces)? a) ROVs b) crewed submersibles

Oceans Composition & Structure Review

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