Multiple choice

'Water table' refers to

  1. the lower limit of the zone of saturation

  2. the upper limit of the zone of saturation

  3. seepage of water into fissures lying underground

  4. the contact zone of the permeable and impermeable rocks
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The water table is the upper limit of the zone of saturation where all pores and fissures in soil and rocks are completely filled with water. It fluctuates seasonally, rising during wet periods and falling during dry periods. Below the water table is the saturated zone; above it is the unsaturated (vadose) zone where air and water coexist in pores.

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