WAEC - Agricultural Science (2022 - No. 13)
Use the information below to answer this question.
In an experiment on soil porosity, the following results were obtained:
Volume of dry soil = 52cm³
Volume of water= 48cm³
Volume of soil and water=78cm³
Calculate the porosity of the soil sample
28.21%
42.31%
45.83%
61.54%
Explanation
Porosity of the soil sample = \(\frac{volume of air space in the soil}{ volume of soil sample}\) x 100
= \(\frac{22cm^3}{52cm^3}\) x 100 = \(\frac{2200}{52}\) = 42.31 %
= \(\frac{22cm^3}{52cm^3}\) x 100 = \(\frac{2200}{52}\) = 42.31 %
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