In its natural condition, a soil sample has a mass of $1.980 \mathrm{~kg}$ and a volume of $0.001 \mathrm{~m}^{3}$. After being completely dried in an oven, the mass of the sample is $1.800 \mathrm{~kg}$.Specific gravity $G$ is 2.7 . Unit weight of water is $10 \mathrm{kN} / \mathrm{m}^{3}$. The degree of saturation of the soil is:
(A) 0.65
(B) 0.70
(C) 0.54
(D) 0.61
In its natural condition, a soil sample has a mass of $1.980 \mathrm{~kg}$ and a volume of $0.001 \mathrm{~m}^{3}$. After being completely dried in an oven, the mass of the sample is $1.800 \mathrm{~kg}$.Specific gravity $G$ is 2.7 . Unit weight of water is $10 \mathrm{kN} / \mathrm{m}^{3}$. The degree of saturation of the soil is:
(A) 0.65
(B) 0.70
(C) 0.54
(D) 0.61