What is the percentage porosity of a soil sample whose volume is 250cm when the volume of air is 200cm? by Sunday | Jun 9 | Agricultural Science WAEC | 0 comments A. 20 B. 25 C. 50 D. 80 Correct Answer: Option A – 20 Users Also Read These:When a sample of water was boiled, it lathered more…What causes the following weld defects? (i) Undercut… In the determination of soil texture, a soil…A person can focus an object only when it lies…When chlorine is passed through a sample of water,…