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66) Choose the correct option from the following listed formula. (Note: n_a is the % of air void, a_c is the air content & n is the soil’s porosity.)

a) n_a = n x a_c

b) n_a= n/(a_c )

c) n_a= n + a_c

d) n_a= n – a_c

Komal Bhandakkar Answered question January 5, 2021
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