Agriculture MCQs

Page No. 25

Which bacteria causes fermentation__________________?


aAzotobacter


bBacillus


cPseudomonas


dCorey


View Answer Pseudomonas

Examples of micro biota are____________________?


aProtozoa


bVirus


cBoth A and B


dNone of the above


View Answer Both A and B

Common soils found in Pakistan are___________________?


aArid soils


bInceptisols


cEntisols


dAll of the above


View Answer All of the above

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


aPrimary hydration


bppm


cNormality


dResidence time


View Answer Residence time

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


a40%


b30%


c58%


d20%


View Answer 40%

Urea in manufactured form gases________________________?


aNH3


bNH48CO2


cNH3 & CH4


dAll of the above


View Answer NH48CO2

Permanente wilting point of clayey soils is not less than____________________?


a20%


b10%


c5%


d15%


View Answer 10%

Secondary air pollution is _____________________?


aHNO3


bCO3


cCO2


dAll of the above


View Answer All of the above

Chitin and steroids are_____________________?


aLipids


bCarbohydrates


cProteins


dWaxes


View Answer Carbohydrates

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__________________?


aSaline soils


bSaline-Sodic soils


cSodic soils


dNeutral soils


View Answer Saline soils

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