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.Management Sciences
Category: Soil Science
Schist is example of____________________?
0
A. Stone
B. Name of mountain
C. Metamorphic rock
D. None of the above
Thickness of Dikes ranges from___________________?
A. 2-10 m
B. Few m 10 m
C. Few cm 10 cm
D. 10-12 cm
While diluting acid always add_____________________?
A. Acid to water
B. Water to acid
C. Both a & b
D. none
Part of soil which is in contact with root surface is called___________________?
A. Rhizoshpere
B. Lithoshpere
C. Atmoshpere
D. None of the above
The most abundant metal in the earth’s crust and toxic to plants in low concentration is____________________?
A. Mo
B. Al
C. Fe
D. All the above
Formula used for the calculation of sodium absorption ratio is______________________?
A. SAR=Na / [(Ca+Mg)1/2] Na x 2
B. SAR=Na / CEC x 100
C. SAR=Na / CEC x 100
D. None of these
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