Agriculture MCQs

Page No. 20

The most abundant metal in the earth’s crust and toxic to plants in low concentration is____________________?


aMo


bAl


cFe


dAll of the above


View Answer Al

The salinity can be reduced by the application of___________________?


aLime


bSulphuric acid


cUrea


dAll of the above


View Answer Lime

Soil moisture and ET losses are_________________?


aInversely related


bDirectly related


cNot related


dOccasionally related


View Answer Directly related

Particular matter consists of____________________?


aSolid and gases


bCO2 & N


cSolid and liquid


dNone of the above


View Answer Solid and liquid

Nitrogen gases are involved in_____________________?


aSleepy feelings


bHair disease


cMental disease


dAcid rains


View Answer Acid rains

A treeless artic plain is called as___________________?


aGlaciers


bBarren land


cTundra


dNone of the above


View Answer Tundra

Biochemical reduction of nitrate to nitrite or gaseous nitrogen is called ________________________?


areduction


bOxidation


cDenitrification


dNone of the above


View Answer Denitrification

While diluting acid always add_____________________?


aAcid to water


bWater to acid


cBoth A and B


dNone


View Answer Acid to water

Organic P content in soil, by ignition method is estimated by igniting the soil at ____________________?


a250ºC


b1000ºC


c550ºC


d1250ºC


View Answer 1000ºC

Boron concentration is irrigation water is considered safe only upto_________________?


a0.7 ppm


b1.5 ppm


c2 ppm


d3 ppm


View Answer 0.7 ppm

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