WAEC Agricultural Science 2022 Question 13

Question 13

Soil Properties

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.

A.28.21%
B.42.31%
C.45.83%
D.61.54%

Show the answer and explanation

Answer: B (42.31%)

Explanation

Porosity = 22 ÷ 52 × 100 = 42.31%.