The soil samples are dried at _______________, for gravimetric soil analysis?
Correct answer: D. 105 0C
- A. 110 0C
- B. 120 0C
- C. both A and B
- D. 105 0C
Explanation
For routine gravimetric soil moisture analysis, samples are commonly dried to constant weight at about 105°C. The higher temperatures listed can remove structural water or alter some soil constituents, so they are not the standard choice.
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