Marine Science Final Exam Questions and Answers, Exams of Marine Science and Biology

Marine science Q&A covering oceanography, properties, exploration, and ocean-atmosphere interactions. Useful for students, it reviews key concepts from seawater composition to currents and marine life. Topics include oceanography branches, water coverage, ocean names, physical oceanography, deepest ocean, drilling ships, oceanographic journeys, marine scientist roles, ocean energy, smallest ocean, florida explorer, southern ocean, deepest trench, and more.

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2025/2026

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Marine |\Science |\Final |\Exam |\question |\with |\
answers
what |\branch |\of |\oceanography |\covers |\the |\chemical |\composition |\of
|\seawater |\and |\the |\chemical |\reactions |\that |\occur |\in |\seawater |\? |\- |\
CORRECT |\ANSWERS |\✔✔physical |\oceanography
what |\percent |\of |\the |\surface |\of |\the |\earth |\is |\covered |\with |\water? |\- |\
CORRECT |\ANSWERS |\✔✔70 |\percent
how |\many |\oceans |\cover |\the |\surface |\of |\the |\earth? |\- |\CORRECT |\
ANSWERS |\✔✔5
what |\is |\another |\name |\for |\lines |\of |\latitude? |\- |\CORRECT |\ANSWERS |\
✔✔parallels
physical |\oceanographers |\study |\the |\_______ |\of |\oceans |\- |\CORRECT |\
ANSWERS |\✔✔waves |\and |\tides
the |\earth's |\oceans |\are |\known |\as |\the |\_____ |\- |\CORRECT |\ANSWERS |\
✔✔asthenosphere
what |\ocean |\is |\the |\deepest |\on |\earth? |\- |\CORRECT |\ANSWERS |\
✔✔Atlantic
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Marine |\Science |\Final |\Exam |\question |\with |\

answers

what |\branch |\of |\oceanography |\covers |\the |\chemical |\composition |\of |\seawater |\and |\the |\chemical |\reactions |\that |\occur |\in |\seawater |? |- |
CORRECT |\ANSWERS |\✔✔physical |\oceanography what |\percent |\of |\the |\surface |\of |\the |\earth |\is |\covered |\with |\water? |- |
CORRECT |\ANSWERS |\✔✔ 70 |\percent how |\many |\oceans |\cover |\the |\surface |\of |\the |\earth? |- |\CORRECT |
ANSWERS |\✔✔ 5 what |\is |\another |\name |\for |\lines |\of |\latitude? |- |\CORRECT |\ANSWERS |
✔✔parallels physical |\oceanographers |\study |\the |_______ |\of |\oceans |- |\CORRECT |
ANSWERS |\✔✔waves |\and |\tides the |\earth's |\oceans |\are |\known |\as |\the |_____ |- |\CORRECT |\ANSWERS |
✔✔asthenosphere what |\ocean |\is |\the |\deepest |\on |\earth? |- |\CORRECT |\ANSWERS |
✔✔Atlantic

how |\many |\continents |\are |\on |\earth? |- |\CORRECT |\ANSWERS |\✔✔ 3 Which |\of |\the |\following |\is |\not |\a |\sea a. |\Mediterranean b. |\Black c. |\Red d. |\Arctic |- |\CORRECT |\ANSWERS |\✔✔Arctic what |\ocean |\is |\the |\second |\largest |\and |\the |\most |\heavily |\travelled? |- |\CORRECT |\ANSWERS |\✔✔the |\Atlantic what |\ship |\is |\a |\well-known |\drilling |\ship? |- |\CORRECT |\ANSWERS |
✔✔Alvin what |\are |\smaller |\bodies |\of |\saltwater |\usually |\enclosed |\by |\land? |- |
CORRECT |\ANSWERS |\✔✔lakes what |\ship |\embarked |\in |\ 1872 |\on |\the |\first |\oceanographic |\journey |
by |\Wyville |\Thompson? |- |\CORRECT |\ANSWERS |\✔✔HMS |\Titanic why |\is |\oceanography |\an |\important |\subject? |- |\CORRECT |\ANSWERS |\✔✔-the |\oceans |\provide |\food -the |\oceans |\affect |\our |\weather -the |\oceans |\provide |\another |\means |\of |\transportation

what |\is |\ 0 |\degrees |\latitude |\called? |- |\CORRECT |\ANSWERS |
✔✔equator what |\landmass |\is |\not |\considered |\a |\continent |- |\CORRECT |
ANSWERS |\✔✔India what |\is |\the |\highest |\mountain |\on |\Earth |\that |\rises |\33,465 |\feet |\from |\the |\sea? |- |\CORRECT |\ANSWERS |\✔✔Mauna |\Kea what |\trench |\is |\about |\6.8 |\miles |\deep |\and |\is |\considered |\the |
deepest |\spot |\in |\the |\ocean? |- |\CORRECT |\ANSWERS |\✔✔Mariana |
Trench the |\ocean |\located |\in |\the |\North |\Pole |\is |\called |\the |______ |\Ocean |- |
CORRECT |\ANSWERS |\✔✔Antarctic the |\body |\of |\water |\that |\touches |\the |\east |\coast |\of |\Florida |\is |\called |
the |_______ |\Ocean |- |\CORRECT |\ANSWERS |\✔✔Arctic the |\body |\of |\water |\that |\touches |\the |\west |\coast |\of |\florida |\is |\called |
the |______ |- |\CORRECT |\ANSWERS |\✔✔Caribbean |\Sea what |\island |\is |\about |\ 90 |\miles |\directly |\south |\of |\Key |\West, |\Florida? |- |\CORRECT |\ANSWERS |\✔✔Cuba what |\is |\ 0 |\degrees |\longitude |\called? |- |\CORRECT |\ANSWERS |
✔✔prime |\meridian

lines |\of |\latitude |\measure |_______ |, |\but |\run________ |\and |\lines |\of |
longitude |\measure |_____, |\but |\run |_______ |- |\CORRECT |\ANSWERS |
✔✔north |\and |\south; |\east |\and |\west; |\east |\and |\west; |\north |\and |
south __________ |\or |\NaCl |\is |\also |\called |\table |\salt |\comes |\from |\the |\oceans |- |\CORRECT |\ANSWERS |\✔✔sodium |\tetrachloride what |\explorer |\named |"America" |\after |\America |\Vespucci? |- |
CORRECT |\ANSWERS |\✔✔Martin |\Waldseemuller what |\famous |\explorer |\proposed |\the |\theory |\of |\evolution |\and |\still |
formation |- |\CORRECT |\ANSWERS |\✔✔Charles |\Darwin what |\type |\of |\energy |\is |\obtained |\from |\the |\ocean's |\direct |
absorption |\of |\sunlight? |- |\CORRECT |\ANSWERS |\✔✔thermal what |\is |\the |\only |\sea |\completely |\enclosed |\by |\land? |- |\CORRECT |
ANSWERS |\✔✔Dead |\Sea what |\sea |\is |\directly |\west |\of |\India |\and |\east |\of |\Saudi |\Arabia? |- |
CORRECT |\ANSWERS |\✔✔Arabian what |\vessels |\are |\underwater |\research |\vehicles? |- |\CORRECT |
ANSWERS |\✔✔Alvin |\and |\Resolution

what |\latitude |\are |\the |\doldrums? |- |\CORRECT |\ANSWERS |\✔✔zero |
degrees what |\current |\runs |\up |\the |\eastern |\seaboard |\of |\the |\Unites |\States? |- |\CORRECT |\ANSWERS |\✔✔Gulf |\Stream hot |\air |____ |\and |\cold |\air |_____ |- |\CORRECT |\ANSWERS |\✔✔rises, |
sinks in |\what |\direction |\do |\hurricanes |\spin |\on |\their |\axis? |- |\CORRECT |
ANSWERS |\✔✔counterclockwise which |\equation |\is |\used |\to |\calculate |\the |\depth |\of |\the |\ocean |\using |
SONAR? |- |\CORRECT |\ANSWERS |\✔✔D= |\1/2 |\t |\X |\ 1524 hot |\water |_____ |\and |\cold |\water |______ |- |\CORRECT |\ANSWERS |
✔✔rises, |\sinks what |\type |\of |\waves |\does |\SONAR |\use? |- |\CORRECT |\ANSWERS |
✔✔sound what |\instrument |\is |\used |\to |\sample |\sediment |\from |\the |\sea |\floor? |- |\CORRECT |\ANSWERS |\✔✔corer, |\dredge, |\grab |\sampler, |\and |"sea |
clam" in |\what |\ocean |\do |\typhoons |\form? |- |\CORRECT |\ANSWERS |\✔✔Pacific

which |\direction |\are |\moving |\objects |\deflected |\on |\the |\surface |\of |
the |\earth |\in |\the |\northern |\hemisphere? |- |\CORRECT |\ANSWERS |
✔✔right areas |\on |\the |\earth |\where |\air |\rises, |______ |\are |\formed |- |\CORRECT |
ANSWERS |\✔✔low |\pressure |\zones what |\time |\of |\the |\year |\does |\El |\Niño |\occur? |- |\CORRECT |\ANSWERS |
✔✔Christmas |\time the |\prevailing |\winds |\are |\also |\called |\the |______ |- |\CORRECT |
ANSWERS |\✔✔westerlies which |\instrument |\is |\used |\to |\determine |\clarity |\in |\ocean |\water? |- |
CORRECT |\ANSWERS |\✔✔Secchi |\Disk what |\does |\SCUBA |\stand |\for? |- |\CORRECT |\ANSWERS |\✔✔self |
contained |\underwater |\breathing |\apparatus the |\instrument |\above |\is |\called |\a |_______ |( |\page |\three |\unit |\ 2 |\test) |- |\CORRECT |\ANSWERS |\✔✔plankton |\net ______ |\is |\the |\amount |\of |\dissolved |\solids |\in |\seawater |- |\CORRECT |
ANSWERS |\✔✔salinity mass |\per |\unit |\volume |\is |\also |\known |\as |_________ |- |\CORRECT |
ANSWERS |\✔✔density

40% |= |? |% |- |\CORRECT |\ANSWERS |\✔✔ 4

what |\ion |\or |\ions |\make |\up |\85.69% |\of |\ocean |\water? |- |\CORRECT |
ANSWERS |\✔✔Na |\and |\Cl^- what |\ion |\is |\most |\abundant |\in |\ocean |\water? |- |\CORRECT |\ANSWERS |\✔✔Cl^- what |\direction |\do |\moving |\objects |\move |\in |\the |\Souther |
Hemisphere? |(page |\ 5 |\unite |\ 2 |\test) |- |\CORRECT |\ANSWERS |\✔✔D what |\body |\of |\water |\below |\contains |\the |\earth's |\greatest |\salinity |\at |\44%? |- |\CORRECT |\ANSWERS |\✔✔Dead |\Sea what |\is |\a |\large, |\circular |\current |\found |\in |\the |\northern |\hemisphere |\and |\souther |\hemisphere |\called? |- |\CORRECT |\ANSWERS |\✔✔Coriolis |\force El |\Niño |\is |\characterized |\by: |- |\CORRECT |\ANSWERS |\✔✔the |\tropical |
Pacific's |\warmest |\water |\spreading |\eastward |\tp |\the |\coast |\of |\south |
America if |\a |\wind |\is |\blowing |\due |\north |\in |\the |\northern |\hemisphere, |\then |\in |\what |\direction |\will |\the |\surface |\current |\move? |- |\CORRECT |
ANSWERS |\✔✔northeast

in |\the |\southern |\hemisphere, |\warm |\water |\tends |\to |\move |\in |\what |
direction? |- |\CORRECT |\ANSWERS |\✔✔north |\and |\south what |\factor |\or |\factors |\affect |\the |\density |\of |\water? |- |\CORRECT |
ANSWERS |\✔✔salinity |\and |\temperature what |\temperature |\is |\the |\densest |\water |\in |\the |\ocean? |- |\CORRECT |
ANSWERS |\✔✔ 4 |\degrees |\Celsius 45-50 |\page |\ 6 |\unit |\ 2 |\test |(chart) |- |\CORRECT |\ANSWERS |\✔✔