Final answer:
The septic tank near Home A is designed to treat and manage household wastewater, removing organic matter and reducing pollution caused by wastewater. It helps prevent waterborne diseases and ensures the environmental sustainability of the surrounding area.
Step-by-step explanation:
The purpose of the septic tank near Home A is to treat and manage the household wastewater. The septic tank system consists of a large container where sludge settles to the bottom and microorganisms decompose the organic solids anaerobically. The clarified water then seeps into the soil and is further purified by bacteria in the drain field. The main objective of the septic tank system is to remove organic matter, reduce pollution caused by wastewater, and prevent waterborne diseases.