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The zone above water table that contains both water and air within the spore spaces of the rock sediment or soil is termed as :

  • A.zone of accumulation
  • B.zone of saturation
  • C.zone of aeration
  • D.zone of wastage

Answer: C

It is the zone of aeration.

Below the ground, the zone between the surface and the water table has pores holding both air and water. This is the zone of aeration (the vadose or unsaturated zone). Below the water table every pore space is filled with water.

That lower zone is the zone of saturation, which has no air in its pores. The zones of accumulation and wastage are terms from glaciers, the areas where ice is gained and lost, not from groundwater.

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