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.Management Sciences
Category: Soil Science
Humic acid is soluble in____________________?
0
A. Acid
B. Alkali
C. Both a & b
D. None of the above
Problem of erosion in Thal and Cholistan is due to____________________?
A. Wind
B. Fire
C. Water
D. Atmosphere
Metamorphic rocks are formed from____________________?
A. Igneous rocks
B. Sedimentary rocks
C. Both a & b
D. Cleavage
Gold is___________________?
A. Native element
B. Secondary element
C. Primary element
D. Heavy metal
Rocks which are formed by disintegration of pre-existing rocks by weathering are____________________?
A. Sand stone
B. Classics
C. Igneous
D. Greis
The reaction of Na2 CO3 salt is____________________?
A. Alkaline
B. Neutral
C. Acidic
D. None of the above
Physical condition of soil for plant growth is called___________________?
A. Granulation
B. Tillage
C. Tilth
D. All the above
Father of agricultural chemistry is___________________?
A. Vonliebig
B. Neil Brady
C. Neuron
D. J. jones
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