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Marine Science Mid-Term Exam with correct Answers
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Marine Science Mid-Term Exam with correct Answers
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Marine Science Mid-Term Exam withcorrect Answers
The Gulf of Mexico experiences this type of tidal pattern- 1 high tide and 1 low tide a
day. - Answer -Diurnal Tide
The weakest tides produced twice each month. Occuring during the 1st and 3rd quarter
phases of the moon, when the Earth,moon, and sun are at right angles to each other. -
Answer -Neap Tide
East coast experiences this type of tidal pattern - 2 high tides and 2 low tides a day -
Answer -Semidiurnal Tides
A large mass of continuously moving ocean water is known as a ... - Answer -Ocean
Current
The highest and lowest tides produced twice each month, when the Earth,moon, and
sun are aligned. Occur during the full moon and new moon. - Answer -Spring Tide
the west coast experiences this type of tidal pattern - 2 high tides and 2 low tides a day,
with the first set of tides being stronger than the second set. - Answer -Mixed Tides
The daily rise and fall of the ocean as seen along the shoreline - Answer -Tides
The up and down movement of the ocean surface caused by wind. - Answer -Waves
The returning of water from a wave that breaks on the beach is known as ... - Answer -
Undertow
A rush of water out to seas, caused by a sandbar breaking. - Answer -Rip Current
A current that moves parallel to the beach, produced by waves breaking at an angle to
the shoreline - Answer -Longshore Current
The movement of beach sand along the shore, pushed by waves and currents - Answer
-Littoral Drift
What is the average salinity of the ocean? - Answer -36 ppt
Which instrument is used to measure salinity? - Answer -Refractometer
, What is the salinity reading for our area, around Bay St. Louis and the Mississippi
Sound? - Answer -Around 17 ppt
A drastic salinity change that occurs in water; forms a boundary between salty water
and less salty water - Answer -Halocline
What is the average pH of the ocean? - Answer -8
Mass per unit volume (The amount of "Stuff" dissolved in water) - Answer -Density
How clear or murky the water is, would be referring to ... - Answer -Turbidity
Ocean Water is ... - Answer -Slightly Basic
Which instrument is used to check if the water is acidic or basic? - Answer -pH Probe
Which instrument is used to measure turbidity? - Answer -Secchi Disk
A drastic temperature change that occurs in water; forms a boundary between cold
water - Answer -Thermocline
The upward force that supports floating objects - Answer -Buoyancy
At what point does a marine biologist become worried about the dissolved oxygen (DO)
levels in the water? At what DO reading? - Answer -2 ppm
Which method is used to measure DO? - Answer -Titration
As the depth of the ocean increases, the amount of DO does what? - Answer -
Decreases
As the water temperature decreases, the amount of DO does what? - Answer -
Increases
As depth increases, the water temperature does what? - Answer -Decreases
As depth increases pressure does what? - Answer -Increases
Area located between high tide and low tide - Answer -Intertidal Zone
Region of water that lies above the continental shelf - Answer -Neritic Zone
Life zones that includes most of the open ocean - Answer -Oceanic Zone
Marks the high tide line - Answer -Strandline
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