Question 6
2.8g soil sample was heated to a constant weight of 24g. When further heated to red hot and cooled, it weighted 18g. What is the percentage of humus in the soil?
Objective
Question details
- Exam body
- DELSU
- Subject
- Biology
- Year
- 2013/2014
- Question no.
- #6
- Type
- Objective
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