Questions and Answers
What is the characteristic of the sediments in the profundal zone?
Fine particles largely made up of material produced within the lake
Why do old shells of gastropods and pelecypods accumulate in the sublittoral zone?
Because the sublittoral zone serves as a cemetery for some littoral species
What effect can onshore winds have on coastal operations?
Create taller waves and lift moist sea air over coastal hills
What does the benthos in a lake reveal about the conditions in the hypolimnetic water?
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What is a common danger associated with terrain-forced thunderstorms?
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What geological feature is formed at a spreading center where two plates are drifting apart?
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What kind of volcanic feature is likely to form over hot spots in the ocean floor?
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At what rate are the plates spreading at the mid-ocean ridge, leading to new oceanic crust formation?
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What geological feature is formed when the peak of a seamount erodes and becomes a flat surface?
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What type of feature is likely to form when the peak of a seamount pierces the ocean surface?
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What is the main concern for boats, submarines, swimmers, and torpedoes approaching shipwrecks?
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How does the presence of bioluminescent organisms affect the visibility of a ship's wake?
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Which factor can disturb the depth of the thermocline in the water?
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What characteristic differentiates the marine life in littoral areas from that in near-surface open ocean?
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Which of the following can cause coastal currents to change rapidly, rendering current charts ineffective?
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What type of animals thrive in the continental shelf regions?
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Which zone begins at the continental shelf break and is usually up to 20 km wide?
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What is the primary source of nourishment for microscopic plants and animals in the ocean?
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Which of the following is NOT a characteristic of land-fast ice?
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Where do lake benthos typically reside?
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How does wind shear affect Navy operations?
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What happens when a river meets the ocean in terms of water density?
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How can reefs, bars, and channels impact the underwater environment?
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What is a potential danger associated with winds creating high waves at sea?
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How do differences in wind patterns above and around mountains affect the Navy's operations?
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