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.Management Sciences
Category: Soil Science
Nitrogen gases are involved in_____________________?
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A. Sleepy feelings
B. Hair disease
C. Mental disease
D. Acid rains
Product of microorganism that appears to chelate calcium is called_____________________?
A. Pyruive acid
B. 2-ketoghconic acid
C. Carbon dioxide
D. Phospheric acid
Who characterized soil formation as set of “4” process______________________?
A. Jinney
B. Ziking
C. Newton
D. Simonson
Age of Earth is_____________________?
A. 4.5 billion years
B. 4 billion years
C. 1 billion years
D. 6 billion years
The site of grains present in sands structuring range__________________?
A. 1.00 0.0625 mm dia
B. 0.0625 mm dia
C. 0-1.0 mm dia
D. None of the above
The complex fertilizer Nitrophos available in the market contains_____________________?
A. 25%N & 23% P2O3
B. 46%N & 23% P2O3
C. 23%N & 23% P2O3
D. None of the above
Permanent change in soil is due to__________________?
A. Ionic bonding
B. pH change
C. Covalent bonding
D. Isomorphic substitution
The atmospheric layer lies closest to the earth surface is known as___________________?
A. Mesosphere
B. Thermosphere
C. Troposphere
D. Stratosphere
Which one of the following are macro nutrients__________________?
A. N,P,K
B. C,H,O
C. Ca,Mg,S
D. All the above
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