Why should oils and fats be not released in the drain? Explain.

Oils and fats are not released in the drain because oil does not dissolved in water and it floats on water. It can clog the drains and can affect aquatic life if released in the water body.

[Extra information: Water cleaning is the process of eliminating all undesirable elements from water, like biological contaminants, dust, pollutants, dirt, etc.

Wastewater: Water from the kitchen used for washing dishes, etc. is known as wastewater.

Sewage: Wastewater released from homes, industries, hospitals and other public buildings is known as sewage. Sewage is the part of wastewater that is contaminated with feces or urine. These are carried off by sewers. There is an intricate system of sewers presents everywhere known as the sewer system. The process of wastewater treatment is known as sewage treatment. t is harmful to discharge untreated sewage into rivers or seas because it can pollute the whole source of water. Sewage contains harmful substances and disease-causing organisms. It is, therefore, dangerous to release untreated sewage into the water. ]