Concept:The aim of this experiment is to find out how much water is present in a soil sample.
Explanation:A moist soil sample of known mass is first weighed.
The sample is then heated or oven-dried until its mass becomes constant.
The loss in mass gives the amount of water that was in the soil.
This loss is expressed as a percentage of the oven-dry soil.
Water content percentage is calculated as
mass of oven-dry soilloss in mass×100.
Hence, the experiment determines the water content of the soil.
Answer:B. ascertain water content of the soil
