What is the percentage porosity of a soil sample whose volume is 250cm when the volume of air is 200cm?
-
20
- 25
- 50
- 80
The correct answer is: A
Explanation
Parameters given:
Volume of soil = 250\(cm^3\)
Volume of air =200\(cm^3\)
Percentage porosity = Volume of space occupied by the soil/Volume of soil
Therefore,%porosity = \(\frac{ 50cm^3}{250cm^3} \times 100 \)= 20%