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:What is the percentage water content of soil sample…An oven dried soil sample of mass 8g had a mass of…Calculate the porosity of the soil sample?A rock sample was added to cold dilute HNO3. The gas…When few drops of concentrated trioxonitrate(V) acid…