The coefficient of permeability indicates the ease with which water can flow through a soil mass. The soil type which has less permeability is __________
(a) gravelly soil
(b) clayey soil
(c) sandy soil
(d) both sandy and gravel soil
This question was addressed to me in a job interview.
This intriguing question originated from Factor Controlling Occurrence of Ground Water topic in portion Ground Water for Irrigation through Wells and Tubewells of Irrigation Engineering