WAEC Agricultural Science 2022 Objective — Question 12
Question 12 of 50 from the West African Examinations Council (WAEC) Agricultural Science 2022 Objective paper, with the correct answer and a full explanation.
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Use the information below to answer questions 12 and 13. In an experiment on soil porosity, the following results were obtained: Volume of dry soil = 52 cm³ Volume of water = 48 cm³ Volume of soil and water = 78 cm³ Determine the volume of airspace in the soil sample.
- A. 22 cm³Correct
- B. 26 cm³
- C. 30 cm³
- D. 100 cm³
Explanation
Volume of airspace = (Volume of dry soil + Volume of water) − Volume of soil and water mixture = (52 + 48) − 78 = 22 cm³.
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