Determination of water content of a soil sample suspected to contain gypsum is made by drying
the sample for longer period at a temperature not more than
(A) 60°C
(B) 80°C
(C) 100°C
(D) 110°C
the sample for longer period at a temperature not more than
(A) 60°C
(B) 80°C
(C) 100°C
(D) 110°C