Electrical conductivity of saturated paste is written as _____?
A. ECP
B. ECe
C. ECs
D. Ecw
The science of growing terrestrial plants in an aerated solution is known as ______?
A. Nutrient film technique
B. Hydrology
C. Hydrants
D. Hydroponics
The wearing away of the land surface by wind, water, ice or other geological agents is called ________?
A. Seepage
B. Soil erosion
C. Soil contamination
D. All the above
Material deposited by the wind is called _______?
A. Regolith
B. Colluvial
C. Alluvium
D. Eolian
Rocks formed from molten magma are called ____?
A. Sedimentary rocks
B. Igneous rocks
C. Alluvial rocks
D. All the above
Deficiency of B can be corrected through application of chemical fertilizer of _______?
A. Solubor
B. Boric acid
C. Borax
D. All the above
Clear water with organic matter or sediment and minimum biological activity is known as ______?
A. Oligotrophic
B. Mestrophic
C. Eutrophic
D. Hydrotrophic
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
Percentage of N in Ammonium ritract fertilizer is ______?
A. 21
B. 23
C. 33
D. 39
Antioxidant is used to reduce the process of _______?
A. Reduction
B. Oxidation
C. Both a & b
D. Dehydration
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