Question 41
SoilA known weight of soil sample was oven-dried to obtain a constant weight. The loss in weight was due to loss of
- A.organic matter only
- B.water only
- C.water and organic matter
- D.inorganic matter and water
Show the answer and explanation
Answer: B (water only)
Explanation
Heating in an oven at about 100 °C drives off only the water; organic matter is removed by strong heating (burning) of the dried soil.