The predominant source of food in abyssal plains is ________.
A. photosynthetic biomass produced on the seafloor
B. chemosynthetic biomass produced at cold seeps
C. chemosynthetic biomass produced at hot vents
D. photosynthetic biomass produced at the surface
E. None of these is correct.
Answer: D
You might also like to view...
A mirage will appear to be looming when:
A) there is a strong negative lapse rate. B) air is very unstable. C) it appear smaller than the actual object. D) there is a strong temperature inversion.
Which factor contributes least to the dissolving of subterranean limestone?
A) plant roots release carbon dioxide underground B) general acidity C) percolating ground water D) abrasive rubbing action of pebbles
What are the three farming patterns that are found in Southeast Asia, and generally where are each of these patterns found?
What will be an ideal response?
A good rule: Action and reaction pairs of forces always act on
A. different bodies. B. the same body. C. either of these D. none of the above