Which of the following is measured by a porometer?
ASoil fertility
BSoil salinity ✓ Correct
CSoil acidity
DAll of the above
Correct answer: (B) Soil salinity
Explanation
A porometer is used to gauge soil salinity, indicating the salt content that affects the soil's pore behaviour.
Soil fertility is assessed through nutrient tests rather than a porometer.
Soil acidity is measured with a pH meter, not a porometer.
Since it targets salinity specifically, treating it as measuring all these properties is wrong.
Excess salinity harms root water uptake and stunts crop growth.
Saline soils are common in poorly drained irrigated and coastal lands.
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