Which silica mineral is present in soil in abundant quantity____________________?
A. Quartz
B. Smectite
C. Gypsum
D. All the above
Soil Science
TSP contains____________________?
TSP contains____________________?
A. 14%
B. 46%P
C. 40%P
D. 50%P
Humic acid is soluble in______________________?
Humic acid is soluble in______________________?
A. Acid
B. Alkali
C. Both a & b
D. Distilled water
Antioxidant is used to reduce the process of_____________________?
Antioxidant is used to reduce the process of_____________________?
A. Reduction
B. Oxidation
C. Both a & b
D. Dehydration
Percentage of N in Ammonium ritract fertilizer is___________________?
Percentage of N in Ammonium ritract fertilizer is___________________?
A. 21
B. 23
C. 33
D. 39
Sewage water consists of water and solids in the following percentage___________________?
Sewage water consists of water and solids in the following percentage___________________?
A. 99 & 1
B. 90 & 10
C. 80 & 20
D. None of the above
Clear water with organic matter or sediment and minimum biological activity is known as__________________?
Clear water with organic matter or sediment and minimum biological activity is known as__________________?
A. Oligotrophic
B. Mestrophic
C. Eutrophic
D. Hydrotrophic
Deficiency of B can be corrected through application of chemical fertilizer of_________________?
Deficiency of B can be corrected through application of chemical fertilizer of_________________?
A. Solubor
B. Boric acid
C. Borax
D. All the above
Rocks formed from molten magma are called__________________?
Rocks formed from molten magma are called__________________?
A. Sedimentary rocks
B. Igneous rocks
C. Alluvial rocks
D. All the above
Material deposited by the wind is called____________________?
Material deposited by the wind is called____________________?
A. Regolith
B. Colluvial
C. Alluvium
D. Eolian