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Soil Science
Kaolinite can be identified by _______?
Boiling
Spectrophotometer
X-ray diffraction
Breaking
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Soil Science
A soil with an ESP greater than 15 is usually classified as _______?
Sodic soil
Acidic soil
Saline soil
None of these
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Soil Science
Weathering of gabbros gives _______?
Clay and Mg oxides
Clay and iron oxide
Sand and clay
Sand and iron oxide
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Soil Science
The complex fertilizer Nitrophos available in the market contains _______?
46%N and 23% P2O3
25%N and 23% P2O3
23%N and 23% P2O3
None of these
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Soil Science
pH of Pakistani soils is _______?
7.5
7
12
14
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Soil Science
The factor used for conversion of P to P2O3 is _______?
0.643
0.453
0.436
None of these
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rikazzz
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Soil Science
The formula used for calculating RSC is _______?
RSC=(CO32 + HCO2) (Na + K + Ca2 + Mg2)
RSC=(CO32 + HCO2) ( Ca2 + Mg2)
Both of the above
None of these
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rikazzz
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Soil Science
pF unit is used for the measurement of _______?
Hydraulic conductivity
Hydraulic potential
Negative soil water potential
All the above
Author:
rikazzz
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Soil Science
Who characterized soil formation as set of “4” process _______?
Ziking
Jinney
Newton
Simonson
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rikazzz
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Soil Science
Gold is _______?
Native element
Primary element
Secondary element
Heavy metal
Author:
rikazzz
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