Soil Mechanics and Foundation
When the degree of saturation is zero, the soil mass under consideration represents

two phase system with soil and air
two phase system with soil and water
one phase system
three phase system

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Soil Mechanics and Foundation
In hydrometer analysis for a soil mass

both meniscus correction and dispersing agent correction are subtractive
both meniscus correction and dispersing agent correction are additive
meniscus correction is additive and dispersing agent correction is subtractive
meniscus correction is subtractive and dispersing agent correction is additive

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