NAIMMCQ: July 2019

Archive for July 2019

What type of organism is Antarctic krill?

What type of organism is Antarctic krill? Answer: Euphausi...

Some coral colonies remove calcium carbonate from seawater and deposit it as limestone in the reef. What is the range of yearly accumulation of limestone in a typical square mile of a reef?

Some coral colonies remove calcium carbonate from seawater and deposit it as limestone in the reef. What is the range of yearly accumulation of limestone...

Which organism reproduces by shedding gametes into the sea, then depending upon thee chance union of egg and sperm?

Which organism reproduces by shedding gametes into the sea, then depending upon thee chance union of egg and sperm? Answer: Purple sea urch...

What is the carbon source for marine autotrophic organisms?

What is the carbon source for marine autotrophic organisms? W)inorganic carbon X) phytoplankton Y) dissolve organic carbon Z) particulate organic carbon Answer: W)...

What is an autotroph?

What is an autotroph? W)a generator of its own food X) a producer of reduced carbon Y) a consumer of plants Z) a consumer of animals Answer: W)...

What type of symbiotic relationship exists between zooxanthellae and coral?

What type of symbiotic relationship exists between zooxanthellae and coral? W)parasitism X) mutualism Y) commensalism Z) amensalism Answer: X)...

What is the most important source of nutrients for phytoplankton in the open ocean?

What is the most important source of nutrients for phytoplankton in the open ocean? W)salt fingers X) upwelling Y) photic zone recycling Z) mixing...

Which of the following is the result of the oxidation of organic matter in sediments?

Which of the following is the result of the oxidation of organic matter in sediments? W)loss of clay particles X) consumption of oxygen Y) production...

Which is an example of a neritic environment?

Which is an example of a neritic environment? W)an estuary X) the sedimentary surface of the seafloor Y) coastal ocean waters Z) the surface waters...

In which suborder are slow swimming whales, which also lack teeth, classified?

In which suborder are slow swimming whales, which also lack teeth, classified? W)odontoceti X) cetacea Y) mysticeti Z) orcinae Answer: Y) M...

Which of the following is the cause of red tides?

Which of the following is the cause of red tides? W)planktonic bloom of red-colored microorganisms X) excess of iron compounds in the water Y) photosynthesis,...

Where does primary production by marine plants occur?

Where does primary production by marine plants occur? W)occurs at all depths X) is limited to the upper 200 meters of the sea Y) is limited to the...

Which stimuli result in adaptations such as vertical migration and countershading in marine life?

Which stimuli result in adaptations such as vertical migration and countershading in marine life? W) light X) pressure Y) temperature Z) salinity Answer: W)...

Which wavelength of light could deep-sea animals most likely detect with their eyes?

Which wavelength of light could deep-sea animals most likely detect with their eyes? W) Infrared X) Visible light Y) Ultraviolet Z) Gamma rays Answer: W)...

Which of the following organisms does NOT accumulate calcium carbonate?

Which of the following organisms does NOT accumulate calcium carbonate? W) Coccolithophores X) Pteropods Y) Foraminifera Z) Cladocera Answer: Z)...

What is primary productivity a measure of?

What is primary productivity a measure of? W) Standing crop X) Life expectancy Y) Rate of birth minus rate of death Z) Rate of production of organic...

What are the two best developed senses in cetaceans?

What are the two best developed senses in cetaceans? W) Sight and smell X) Taste and hearing Y) Taste and smell Z) Sight and hearing Answer: Z)...

Where does the band of coral reef development extend to higher latitudes?

Where does the band of coral reef development extend to higher latitudes? W) Atlantic Ocean X) Pacific Ocean Y) The east side of all oceans Z) The...

How can you quickly determine the sex of most species of crabs?

How can you quickly determine the sex of most species of crabs? W) External sex organs X) Relative size of the pincher claws Y) The shape of the...

How many years does it take for an amount of water equal to the entire volume of the ocean to cycle through hydrothermal vents?

How many years does it take for an amount of water equal to the entire volume of the ocean to cycle through hydrothermal vents? W)1000 years X) 100,000...

Why are chelators important to marine organisms?

Why are chelators important to marine organisms? W) They absorb sunlight X) They bind trace metals Y) They prevent sinking Z) They enhance feeding...

What environmentally harmful isotope was produced during the 1954 'Bravo' thermonuclear detonation at Bikini Atoll?

What environmentally harmful isotope was produced during the 1954 'Bravo' thermonuclear detonation at Bikini Atoll? W)Uranium 238 X) Nitrogen-15 Y)...

Which two molecules increase in concentration in deep water as it travels from the North Atlantic to the North Pacific ocean?

Which two molecules increase in concentration in deep water as it travels from the North Atlantic to the North Pacific ocean? W)Oxygen and nitrate X)...

What is the most abundant excess volatile on Earth?

What is the most abundant excess volatile on Earth? W)Carbon dioxide X) Water Vapor Y) Chlorine Z) Nitrogen Answer: ...

Which of the following primarily causes the variation in the salinity of seawater?

Which of the following primarily causes the variation in the salinity of seawater? W)Carbon dioxide X) Sodium ions Y) Chloride ions Z) Water molec...

Which three factors are responsible for hypoxic zones in the northern Gulf of Mexico?

Which three factors are responsible for hypoxic zones in the northern Gulf of Mexico? W)Pesticide-laden runoff, high winds, and strong currents X)...

What does a chemical equation with a negative delta G indicate?

What does a chemical equation with a negative delta G indicate? W)Releasing energy and not spontaneous X) Endothermic and spontaneous Y) Exothermic...

In methane hydrates, what traps the methane gas?

In methane hydrates, what traps the methane gas? W)Carbon dioxide X) Water Y) Argon Z) Oxygen Answer: ...

What is the salinity range where you would find the turbidity maximum in an estuary?

What is the salinity range where you would find the turbidity maximum in an estuary? W)1 to 5 ppm X) 5 to 15 ppm Y) 15 to ppm Z) 25 to 35 ppm An...

What does the Law of Constancy of Composition state?

What does the Law of Constancy of Composition state? W)The relative proportion of ions and their concentrations are virtually constant X) The relative...

Generally, what are conservative elements in seawater?

Generally, what are conservative elements in seawater? W) Major components X) Minor components Y) Easily dissolved Z) Used in photosynthetic activ...

How does increasing atmospheric pressure affect the boiling point of water?

How does increasing atmospheric pressure affect the boiling point of water? W)The boiling point decreases X) The boiling point does not change Y) The...

Which type of heat changes the state of a substance, but does not raise its temperature?

Which type of heat changes the state of a substance, but does not raise its temperature? W) Transforming heat X) Sensible heat Y) Latent heat Z) Converting...

What is the average salinity of the world's oceans?

What is the average salinity of the world's oceans? W)10 X) 25 Y) 35 Z) 50 Answer: ...

What type of reaction is cellular respiration considered?

What type of reaction is cellular respiration considered? W)Endothermic X) Catalytic Y) Inorganic Z) Exothermic Answer: ...

How is organic matter produced in the ocean classified?

How is organic matter produced in the ocean classified? W)Allochthnonous X) Autochthonous Y) Terrigenous Z) Hydrogenous Answer: ...

Lead-210 with a half-life of 22 years cannot be used to determine the sedimentation of deep-ocean sediments because:

Lead-210 with a half-life of 22 years cannot be used to determine the sedimentation of deep-ocean sediments because: W)its half-life is too short X)...

Which of the following is a component of siliceous ooze?

Which of the following is a component of siliceous ooze? W)Foraminifers X) Radiolarians Y) Pteropods Z) coccolithophores Answer: ...

What is an example of a hydrogenous sediment?

What is an example of a hydrogenous sediment? W)Manganese X) Calcareous oozes Y) Siliceous oozes Z) Brown Red clays Answer: ...

What is the range of fine sand, on the Wentworth scale of particle size?

What is the range of fine sand, on the Wentworth scale of particle size? W)0.5 to 1 millimeter X) 0.25 to 0.5 millimeter Y) 0.125 to 0.25 millimeter Z)...

Which of the following is NOT a type of marine phytoplankton that makes up a major portion of marine sediments?

Which of the following is NOT a type of marine phytoplankton that makes up a major portion of marine sediments? W)Dinoflagellates X) Diatoms Y) Coccolithophorids Z)...

Which of the following is NOT a scientific classification of a coral reef type?

Which of the following is NOT a scientific classification of a coral reef type? W)Fringing reef X) Nearshore reef Y) Barrier reef Z) Atoll reef ...

Where is the feature called the Moho situated?

Where is the feature called the Moho situated? W)Within the asthenosphere X) Beneath the asthenosphere Y) Within the lithosphere Z) Between the lithosphere...

What type of plate is the San Andreas fault?

What type of plate is the San Andreas fault? W) Convergent plate boundary X) Divergent plate boundary Y) Transform plate boundary Z) Transcurrent...

Approximately, when did the North America began to separate from Europe?

Approximately, when did the North America began to separate from Europe? W)10 million years ago X) 50 million years ago Y) 200 million years ago Z)...

When does the higher berm on a beach form?

When does the higher berm on a beach form? W)During neap tides X) During the summer in times of low energy waves Y) During winter conditions Z) During...

What type of deposits are formed by conditions no longer existing in that area?

What type of deposits are formed by conditions no longer existing in that area? W)Relict sediments X) Anomalous sediments Y) Defunct sediments Z) Derivative...

Which of the following would be used to show the relationship between the height of the land and the depths of the ocean basins?

Which of the following would be used to show the relationship between the height of the land and the depths of the ocean basins? W)Hypsographic (hip-soh-gra-fic)...

Where does the relative motion of a transform fault occur?

Where does the relative motion of a transform fault occur? W)Outside the adjacent ridge axes X) West of the adjacent ridge axes Y) Between the adjacent...

What area did Project FAMOUS explore?

What area did Project FAMOUS explore? W)Atlantic and Pacific Oceans X) Indian Ocean abyssal plain Y) East Pacific Rise Z) Mid-Atlantic Ridge rift ...

Which compelling piece of evidence supported the theory of seafloor spreading?

Which compelling piece of evidence supported the theory of seafloor spreading? W) The discovery and mapping of magnetic stripes on the seafloor X)...

Which of the following is NOT a clay mineral found in marine sediments?

Which of the following is NOT a clay mineral found in marine sediments? W)Chlorite X) Illite Y) Muscovite Z) Kaolinite Answer: ...

Which of the following was the basis of geologists' current estimate of the Earth's age?

Which of the following was the basis of geologists' current estimate of the Earth's age? W)Moon rocks and meteorites X) Fossils Y) Continental rocks Z)...

What is the name of the Eastern Boundary current in the South Atlantic?

What is the name of the Eastern Boundary current in the South Atlantic? W)West Wind Drift X) South Equatorial Current Y) Benguela Current Z) Canary...

Which best describes the concept of hurricanes as heat transfer engines?

Which best describes the concept of hurricanes as heat transfer engines? W)Transfer the sun's energy from temperate zones to polar zones X) Transfer...

What is the second largest reservoir, by volume, on the planet?

What is the second largest reservoir, by volume, on the planet? W)The atmosphere X) Freshwater lakes Y) Ice sheets and glaciers Z) Groundwater ...

What is a wind blowing from the northeast to the southwest called?

What is a wind blowing from the northeast to the southwest called? W)Northwest X) Northerly Y) Northeast Z) Southwest Answer: ...

What is the depth of the water a shallow-water wave is traveling in, by definition?

What is the depth of the water a shallow-water wave is traveling in, by definition? W)Less than one-twentieth of the wavelength X) less than one-half...

Which name is given to the wind band between the horse latitudes and the doldrums in the Southern Hemisphere?

Which name is given to the wind band between the horse latitudes and the doldrums in the Southern Hemisphere? W)Prevailing westerlies X) Northeast...

What is the sum of planetary and relative vorticity known as?

What is the sum of planetary and relative vorticity known as? W)Absolute vorticity X) Momentum vorticity Y) Positive vorticity Z) Wind vorticity ...

Which of the following results in the high speed of sound in bottom waters?

Which of the following results in the high speed of sound in bottom waters? W)Low salinity X) High temperature Y) Low pressure Z) Increased density...

Which of the following best defines the wavelength of a wave?

Which of the following best defines the wavelength of a wave? W)It is the distance from crest to through measure horizontally X) It is the distance...

Which of the following is an implication of surface divergence?

Which of the following is an implication of surface divergence? W)Horizontal mixing must occur as a consequence X) Biological productivity will decrease Y)...

Which of the following is NOT TRUE about Langmuir circulation?

Which of the following is NOT TRUE about Langmuir circulation? W) It is produced by the wind X) It was first observed in the Sargasso Sea Y) It occurs...

What is the name for the point at which the moon is farthest away from the Earth during its orbit?

What is the name for the point at which the moon is farthest away from the Earth during its orbit? W)Perigee X) Apogee Y) Neap Z) Equinox Answer...

Which of the following will result in an increase in the speed of sound transmission in ocean water?

Which of the following will result in an increase in the speed of sound transmission in ocean water? W)Increased temperature X) Decreased salinity Y)...

Which characteristic does not describe a tsunami?

Which characteristic does not describe a tsunami? W)It can pass across the deep ocean without being noticed X) It can be a few meter high with a...

What is the speed of a wave equal to ?

What is the speed of a wave equal to ? W)Height X) Amplitude divided by the wavelength Y) Wavelength divided by the frequency Z) Wavelength divided...

Which natural phenomenon does not cause a tsunami?

Which natural phenomenon does not cause a tsunami? W)Earthquake X) Volcanic eruption Y) Landslide Z) Tide Answer: ...

Which best describes the behavior of high-energy waves of winter storms?

Which best describes the behavior of high-energy waves of winter storms? W)Move sand from offshore bars onto the beach X) Move sand spits and tombolos Y)...

What happens to the speed of sound when there is an increase in temperature, pressure, or salinity?

What happens to the speed of sound when there is an increase in temperature, pressure, or salinity? W)Increases X) decreases Y) Remains the same Z)...

If someone drops a cork into the ocean, about 10 km from shore, how long does it to take for the cork to move to the shore?

If someone drops a cork into the ocean, about 10 km from shore, how long does it to take for the cork to move to the shore? W)A few hours X) 1 day Y)...

What do underwater earthquakes, landslides, volcanic eruptions, or explosions generate?

What do underwater earthquakes, landslides, volcanic eruptions, or explosions generate? W)Freak waves X) Whirlpools Y) Tsunamis Z) Eddies Answ...

The methods of electrodialysis, reverse osmosis, and ion exchange are used for which purpose?

The methods of electrodialysis, reverse osmosis, and ion exchange are used for which purpose? W)Determining water salinity X) Measuring current velocity Y)...

What is ConShelf III?

What is ConShelf III? W)A manned submersible X) An underwater habitat Y) A remotely operated vehicle Z) An autonomous explorer Answer: ...

How does a Global Positioning System receiver calculate the distance to a GPS satellite?

How does a Global Positioning System receiver calculate the distance to a GPS satellite? W) By transmitting and receiving a radar signal aimed at...

Which Navy-developed model will give a global analyses and forecast, out to 6 days, for significant wave height and direction?

Which Navy-developed model will give a global analyses and forecast, out to 6 days, for significant wave height and direction? W)NOGAPS (No-Gaps) X)...

What does the gyroscopic compass do?

What does the gyroscopic compass do? W)Calculates magnetic variation X) Senses the earth's rotation and orients its axis of rotation parallel to...

What device can be used to map sixty kilometer wide strips of ocean floor?

What device can be used to map sixty kilometer wide strips of ocean floor? W)Side-scanning sonar systems X) Echo sounders Y) Explosion seismic surveys Z)...

Which of the following resulted in the production of an accurate map of the ocean floor?

Which of the following resulted in the production of an accurate map of the ocean floor? W)Enough soundings using a weight had been made X) Sound...

Which of these oceanographic vehicles is the only autonomous vehicle?

Which of these oceanographic vehicles is the only autonomous vehicle? W)ALVIN X) NR-1 Y) ABE Z) NAUTILE Answer: ...

What commercial fishing method utilizes multiple baited hooks, suspended beneath the ocean surface?

What commercial fishing method utilizes multiple baited hooks, suspended beneath the ocean surface? W)Trolling X) Trawling Y) Seining Z) Longlin...

Who discovered that the White Cliffs of Dover contained layers of coccolithophorids?

Who discovered that the White Cliffs of Dover contained layers of coccolithophorids? W)Robert Hooke X) Robert Brown Y) Anton van Leeuwenhoek Z) Camillio...

Which activity has the least impact on seagrass communities?

Which activity has the least impact on seagrass communities? W)Overharvesting X) Watershed development Y) Boating Z) Fertilizing farmlands Ans...

Who first developed the concepts of latitude and longitude?

Who first developed the concepts of latitude and longitude? W)Eratosthenes X) Pythagoras Y) Ptolemy Z) Prince Henry the Navigator Answer: ...

Which of the following is prohibited in US marine sanctuaries?

Which of the following is prohibited in US marine sanctuaries? W)Swimming X) Fishing Y) Dredging Z) Shipping Answer: ...

Which submarine first traveled under the ice pack?

Which submarine first traveled under the ice pack? W)USS Nautilus in 1932 X) USS Nautilus in 1958 Y) USS Skate in 1958 Z) USS Seadragon in 1960 ...

Which ocean-related disaster caused the greatest loss of life in US history?

Which ocean-related disaster caused the greatest loss of life in US history? W)Hurricane Andrew of 1992 X) The Johnson Flood of 1889 Y) The Galveston...

Which of the following is the greatest threat to most dune plants?

Which of the following is the greatest threat to most dune plants? W)Human traffic X) Hot summer temperatures Y) Wind blown sand Z) Salt spray ...

Which man accomplished the first prevention of scurvy on his voyage?

Which man accomplished the first prevention of scurvy on his voyage? W)Vasco de Gama X) Nathanial Palmer Y) James Cook Z) Ferdinand Magellan A...

What is the name of the strait between Australia and Tasmania?

What is the name of the strait between Australia and Tasmania? W)Cook X) Bass Y) Torres Z) Brisbane Answer: ...

Exclusive Economic Zones cover what percent of the seafloor?

Exclusive Economic Zones cover what percent of the seafloor? W)16 percent X) 24 percent Y) 36 percent Z) 52 percent Answer: ...

What is a geoid?

What is a geoid? W)An oblate spheroid X) A sphere with an envelope of fluids Y) A rotating sphere Z) The shape of the earth Answer: ...

Near which city is the US National Hurricane Center located

Near which city is the US National Hurricane Center located W)Cape Canaveral X) Houston Y) Miami Z) Tampa Answer: ...

What is your latitudinal position at dusk when the smallest angle between the horizon and the North Star (Polaris) is 22 degrees?

What is your latitudinal position at dusk when the smallest angle between the horizon and the North Star (Polaris) is 22 degrees? W)44 degrees N X)...