"Water depth" is the factor among the choices given that has the <span>greatest importance in determining the characteristics of an aquatic ecosystem. The correct option among all the options given is the second option.
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I'm assuming that the choices are the ways urban landfills use to increase decay rate for most trash? If so, then the answer would be '<span>increase the number of aerobic bacteria'. Increasing the number of aerobic bacteria increase the decay rate for most trash.</span>
Answer: Survival of Aquatic Organisms
Explanation: The deepest layer is the cold, dense water at the lake bottom, called the hypolimnion, it is important for all the aquatic organisms in a lake that require oxygen to survive.
