Answer is:
To prevent the passage of foul gases from the drain
Answer is:
Anti-siphonage
Answer is:
Density
Explanation:
Density or mass density is defined as the mass per unit volume of a liquid at a standard temperature and pressure. Density or mass density is usually denoted by ρ(rho).
Density or mass density is expressed in kg/m3.
Mathematically, density or mass density, ρ=m/V, where
m = Mass of the liquid, and
V = Volume of the liquid.