Soil Science Mcqs - Set 7

1)   The available form of sulphur for plant is___________________?

a. S2
b. SO-2
c. SO3
d. SO2
Answer  Explanation 

ANSWER: SO-2

Explanation:
No explanation is available for this question!


2)   The plant in which CO2 fixation is solely via the Calvin cycle is_____________________?

a. C
b. CAB
c. C
d. CAM
Answer  Explanation 

ANSWER: CAB

Explanation:
No explanation is available for this question!


3)   Gravimetric water is present in__________________?

a. Microspores
b. Macrospores
c. Mesopores
d. Nanopores
Answer  Explanation 

ANSWER: Macrospores

Explanation:
No explanation is available for this question!


4)   Sugar cane is_____________________?

a. C3 plant
b. C4 plant
c. C2 plant
d. None of the above
Answer  Explanation 

ANSWER: C4 plant

Explanation:
No explanation is available for this question!


5)   The lower limit of available water is called ____________________?

a. Field capacity
b. Wilting point
c. Available water
d. Hygroscopic water
Answer  Explanation 

ANSWER: Wilting point

Explanation:
No explanation is available for this question!


6)   [(NH4)2SO4FeSO66H2O] is the formula of _______________________?

a. Ammonium sulphate Iron sulphate
b. Sodium ammonium sulphate
c. Ferrous Ammonium sulphate
d. None of the above
Answer  Explanation 

ANSWER: Ferrous Ammonium sulphate

Explanation:
No explanation is available for this question!


7)   C12H12N-NaO8S2 is the chemical formula of ____________________?

a. Activated charcoal
b. Azomethine H
c. Carbonated sodium sulphate
d. None of the above
Answer  Explanation 

ANSWER: Azomethine H

Explanation:
No explanation is available for this question!


8)   The formula used for calculating RSC is _____________________?

a. RSC=(CO32 + HCO2) (Na + K + Ca2 + Mg2)
b. RSC=(CO32 + HCO2) ( Ca2 + Mg2)
c. None of the above
d. non of these
Answer  Explanation 

ANSWER: RSC=(CO32 + HCO2) ( Ca2 + Mg2)

Explanation:
No explanation is available for this question!


9)   While handing concentrated acids. bases or other hazardous chemicals use_________________?

a. Table
b. Fume hoods
c. Both a & b
d. None of the above
Answer  Explanation 

ANSWER: Fume hoods

Explanation:
No explanation is available for this question!


10)   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
Answer  Explanation 

ANSWER: pH

Explanation:
No explanation is available for this question!


11)   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
Answer  Explanation 

ANSWER: Saline soils

Explanation:
No explanation is available for this question!


12)   Chitin and steroids are_____________________?

a. Lipids
b. Carbohydrates
c. Proteins
d. Waxes
Answer  Explanation 

ANSWER: Carbohydrates

Explanation:
No explanation is available for this question!


13)   Secondary air pollution is _____________________?

a. HNO3
b. CO3
c. CO2
d. All the above
Answer  Explanation 

ANSWER: All the above

Explanation:
No explanation is available for this question!


14)   Permanente wilting point of clayey soils is not less than____________________?

a. 20%
b. 10%
c. 5%
d. 15%
Answer  Explanation 

ANSWER: 10%

Explanation:
No explanation is available for this question!


15)   Urea in manufactured form gases________________________?

a. NH3
b. NH48CO2
c. NH3 & CH4
d. All the above
Answer  Explanation 

ANSWER: NH48CO2

Explanation:
No explanation is available for this question!


16)   Acid soils of the world’s arable comprise up to_____________________?

a. 40%
b. 30%
c. 58%
d. 20%
Answer  Explanation 

ANSWER: 40%

Explanation:
No explanation is available for this question!


17)   The time for which water and ion remains in vicinity is called_____________________?

a. Primary hydration
b. ppm
c. Normality
d. Residence time
Answer  Explanation 

ANSWER: Residence time

Explanation:
No explanation is available for this question!


18)   Common soils found in Pakistan are___________________?

a. Arid soils
b. Inceptisols
c. Entisols
d. All the above
Answer  Explanation 

ANSWER: All the above

Explanation:
No explanation is available for this question!


19)   Examples of micro biota are____________________?

a. Protozoa
b. Virus
c. Both a & b
d. None of the above
Answer  Explanation 

ANSWER: Both a & b

Explanation:
No explanation is available for this question!


20)   Which bacteria causes fermentation__________________?

a. Azotobacter
b. Bacillus
c. Pseudomonas
d. Corey
Answer  Explanation 

ANSWER: Pseudomonas

Explanation:
No explanation is available for this question!