Question

The boundary between the unsaturated and saturated water zones in the underground is called:

• A. vadose zone
• B. ground water table
• C. phreatic line
• D. capillary zone

Hint:

Water table = top surface of the saturated zone, below which groundwater completely fills pore spaces.

Answer 1

The Correct Option is B

The groundwater table is the boundary between the unsaturated zone (vadose zone) and the saturated zone (phreatic zone) underground. Water below the water table fills all available pore spaces, whereas above it, pore spaces contain both air and water.