GENERAL KNOWLEDGE

Detailed explanation-1: -The ground water that occurs when flow of the subterranean water is not confined by the presence of impermeable layers is called unconfined groundwater.

Detailed explanation-2: -Unconfined aquifers are where the rock is directly open at the surface of the ground and groundwater is directly recharged, for example by rainfall or snow melt. Confined aquifers are where thick deposits overly the aquifer and confine it from the Earth’s surface or other rocks.

Detailed explanation-3: -Solution(By Examveda Team) The groundwater can become confined between two impermeable layers. This type of enclosed water is called a artesian.

Detailed explanation-4: -the groundwater flow is only horizontal and has no vertical hydraulic component; the horizontal component of the hydraulic gradient is constant with the depth and equal to the slope of the groundwater level; there is no Seepage.