Question

point source pollution
point source pollution refers to easily identifiable source of water pollution. these pollution sources can include industrial facilities with visible pipes discharging effluent water. effluent water refers to waste water of varying quality released into natural bodies of water.
in the past, some industries, such as old factories and refineries, were often located along rivers, using them as convenient disposal routes for their waste. however, environmental regulations have evolved to prohibit direct waste disposal into water bodies, making such practices illegal in the us. although significant progress has been made in the us, other parts of the world may still face this environmental challenge.
sewage treatment plants represent a notable example of point - source pollution. these facilities collect sewage from residential, commercial, and industrial areas. the water undergoes treatment processes to remove contaminants before the treated water is released back into the water cycle.
what is defined as \waste water of varying quality released into natural bodies of water\?
river water
effluent water
drinking water

Explanation:

The text clearly states that "Effluent water refers to waste water of varying quality released into natural bodies of water".

Answer:

effluent water