Question

density of water on ground​

Answer 1

ANSWER-Fresh‐water and environmental‐water heads are shown to be useful in studying movement of ground water of variable density, such as in a system of fresh, diffused, and salt water. Fresh‐water head at a given point in ground water of variable density is defined as the water level in a well filled with fresh water from that point to a level high enough to balance the existing pressure at the point. Fresh‐water heads define hydraulic gradients along a horizontal.