Answer:
53.33%
Explanation:
Data provided in the question;
Volume of the soil sample = 150 cm³
Volume of the water in the soil = 45 cm³
Volume of air in the soil = 35 cm³
Now,
The porosity is given as:
η =
Also,
Total volume of voids = Volume of water + Volume of air
or
Total volume of voids = 45 cm³ + 35 cm³ = 80 cm³
Therefore,
η =
or
η = 0.5333
or
η = 0.5333 × 100% = 53.33%