Examples of micro biota are____________________?
Examples of micro biota are____________________?
A. Protozoa
B. Virus
C. Both a & b
D. None of the above
Soil Science
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Common soils found in Pakistan are___________________?
Common soils found in Pakistan are___________________?A. Arid soils
B. Inceptisols
C. Entisols
D. All the above -
The time for which water and ion remains in vicinity is called_____________________?
The time for which water and ion remains in vicinity is called_____________________?A. Primary hydration
B. ppm
C. Normality
D. Residence time -
Acid soils of the world’s arable comprise up to_____________________?
Acid soils of the world’s arable comprise up to_____________________?A. 40%
B. 30%
C. 58%
D. 20% -
Urea in manufactured form gases________________________?
Urea in manufactured form gases________________________?A. NH3
B. NH48CO2
C. NH3 & CH4
D. All the above -
Permanente wilting point of clayey soils is not less than____________________?
Permanente wilting point of clayey soils is not less than____________________?A. 20%
B. 10%
C. 5%
D. 15% -
Secondary air pollution is _____________________?
Secondary air pollution is _____________________?A. HNO3
B. CO3
C. CO2
D. All the above -
Chitin and steroids are_____________________?
Chitin and steroids are_____________________?A. Lipids
B. Carbohydrates
C. Proteins
D. Waxes -
The conductivity of a saturation extract is greater 4 dsm-1 an exchangeable sodium percentage (ESP) of less than 15 and the pH is usually less than 8.5 is called as__________________?
The conductivity of a saturation extract is greater 4 dsm-1 an exchangeable sodium percentage (ESP) of less than 15 and the pH is usually less than 8.5 is called as__________________?A. Saline soils
B. Saline-sodic soils
C. Sodic soils
D. Neutral soils -
An expression of the intensity of the basic or a acidic condition of a liquid or of soil is called_____________________?
An expression of the intensity of the basic or a acidic condition of a liquid or of soil is called_____________________?A. ESR
B. SAR
C. EC
D. pH