SCIENCE
ENVIRONMENTAL SCIENCES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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increase in salt content from shallow to deep waters
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size of the benthic zone, where photosynthetic occurs
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amount of nutrients and sunlight that are available
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distribution of zooplankton
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Detailed explanation-1: -the types of organisms in an aquatic ecosystem are mainly determined by the water’s salinity-the amount of dissolved salts the water contains. As a result, aquatic ecosystems are divided into freshwater ecosystems and marine ecosystems.
Detailed explanation-2: -Nutrients in coastal environments come from various sources-from rivers, atmospheric deposition, groundwater and from in situ biological fixation, see also What causes eutrophication? Rivers are the main transport route of nutrients to the coastal oceans.
Detailed explanation-3: -Factors such as temperature, sunlight, oxygen, and nutrients determine which organisms live in which area of the water. Aquatic ecosystems contains several types of organisms that are grouped by their location and by their adaptation. Three groups of aquatic organisms include plankton, nekton, and benthos.