Water at wilting coefficient is held with a force of
A. 15 atm
B. 0.33 atm
C. $$\frac{1}{3}$$ atm
D. 31 atm
Answer: Option A
A. 15 atm
B. 0.33 atm
C. $$\frac{1}{3}$$ atm
D. 31 atm
Answer: Option A
Sources of negative charges on silicate clays is/are
A. Exposed crystal edges
B. Isomorphus substitution
C. Anion exchange
D. All of these
The most conspicuous chemical change that take place when soil is flooded is reduction of
A. Fe
B. P
C. S
D. None of these
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