The process whereby oxygen is depleted by the growth of microorganisms due to excess nutrients in aquatic systems is called
dead zoning
eutrophication
retrofication
depletion

eutrophication

Explanation:

Eutrophication (or eutrophication) is a process usually of anthropic origin (caused by man), or rarely of a natural nature, having as its basic principle the gradual concentration of accumulated organic matter in aquatic environments.

Among the impacting factors, contributing to the increasing pollution rate in this ecosystem, are: domestic waste (sewage), agricultural fertilizers and industrial effluents, directly discharged or percolated towards watercourses (rivers and lakes, for example).

a. autosomal.

explanation:

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.