Percent pore space can be calculated by using of which formula
A. $$\% {\text{PS}} = {\text{100}} - \left( {\frac{{{{\text{D}}_{\text{p}}}}}{{{{\text{D}}_{\text{b}}}}} \times 100} \right)$$
B. $$\% {\text{PS}} = {\text{100}} - \left( {\frac{{{{\text{D}}_{\text{b}}}}}{{{{\text{D}}_{\text{p}}}}} \times 100} \right)$$
C. $$\% {\text{PS}} = {\text{1}} - \left( {\frac{{{{\text{D}}_{\text{p}}}}}{{{{\text{D}}_{\text{b}}}}} \times 100} \right)$$
D. $$\% {\text{PS}} = \left( {\frac{{{{\text{D}}_{\text{p}}}}}{{{{\text{D}}_{\text{P}}}}} \times 100} \right)$$
Answer: Option B
Solution(By Examveda Team)
Percent pore space is defined by the porosity of a material possessing free space between the mineral grains expressed in percentage. It is proposed by Rebollo et al., 1996.It depends on the size and sorting of the particles as a cubic or hexagonal package.
$$\% {\text{PS}} = 100 - \left( {\frac{{{{\text{D}}_{\text{b}}}}}{{{{\text{D}}_{\text{p}}}}} \times 100} \right)$$
Which one is the most important among Amphibloes
A. Hornblend
B. Tremolite
C. Diopsite
D. Actinolite
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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