Final answer:
The correct answer is option c. A marine pump out station pumps out waste from holding tanks as a part of wastewater treatment facilities.
Step-by-step explanation:
A marine pump out station pumps out waste from holding tanks. It is a part of wastewater treatment facilities that remove contaminants from the wastewater before it is released back into the natural environment.
A marine pump out station is typically located on low ground so that gravity can move the sewage from boats to the pump out station. The sewage is then pumped out of the holding tanks using pumps and transferred to the wastewater treatment plant.
At the wastewater treatment plant, the sewage goes through several treatment processes including pretreatment, primary treatment, secondary treatment, tertiary treatment, and disinfection. These processes remove organic matter, kill bacteria, and can also remove nutrients and other pollutants. The treated wastewater is then either discharged into surface waters or reused for other purposes, such as irrigation or artificial groundwater recharge.