(4) The victim is at least 13 but less than 16 years old and the actor is at least four years older than the victim. Sexual assault is a crime of the second degree. Amended amended 1979, c.178, s.26; 1983, c.249, s.2; 1989, c.228, s.3; 1997, c.194, s.1.
Quick Answer. Pressure is exerted by fluids because of their weight. According to Georgia State University, static fluid pressure is exerted by the depth of the fluid, the density of the fluid and the acceleration of gravity.
An example would be hydrostatic pressure which is the pressure exerted on a surface by a column of fluid, usually water, above it. For instance you could measure the hydrostatic pressure on the floor of a lake caused by the weight of the column of water above.