Screening
Skimming
Filtration
None of these
Answer is Wrong!
Answer is Right!
The correct answer is B. Skimming.
Skimming is a process used to remove oil and grease from sewage. It is a physical process that uses gravity to separate the oil and grease from the water. The oil and grease float to the surface of the water and are then skimmed off.
Screening is a process used to remove large objects from sewage. It is a physical process
213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube