Question

The quantity of water retained by the sub-soil against gravity, is known (a) yield (b) porosity (c) specific yield (d) specific retention

Answer 1

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here is your answer ⤵️⤵️

Option D is the answer.

hope my answer helps you

Answer 2

The quantity of water retained by the sub-soil against gravity, is known (a) yield (b) porosity (c) specific yield (d) specific retention

The correct answer is :

(d) specific retention

Explanation :

Specific retention is the volume fraction of water that is held back by adhesion and capillary forces when an aquifer is drained.

A typical yield is the amount of water that is actually available for groundwater pumping. This condition occurs when sediments or rocks are removed due to low water levels.

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