5 g of oven dried soil was heated in a furnace for 24 hours. After cooling, it weighed 4.8 g. What is the amount of humus in the soil?
40.0g per 100 g dry soil
4.4g per 100g dry soil
4.0 g per 100g dry soil
0.4g per 100g dry soil
Correct answer is C
No explanation has been provided for this answer.