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

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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

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bDirectly related

✓


cNot related

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dOccasionally related

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View Answer Directly related

Particular matter consists of____________________?


aSolid and gases

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bCO2 & N

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cSolid and liquid

✓


dNone of the above

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View Answer Solid and liquid

Nitrogen gases are involved in_____________________?


aSleepy feelings

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bHair disease

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cMental disease

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dAcid rains

✓


View Answer Acid rains

A treeless artic plain is called as___________________?


aGlaciers

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bBarren land

✖


cTundra

✓


dNone of the above

✖


View Answer Tundra

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


areduction

✖


bOxidation

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cDenitrification

✓


dNone of the above

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View Answer Denitrification

While diluting acid always add_____________________?


aAcid to water

✓


bWater to acid

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cBoth A and B

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dNone

✖


View Answer Acid to water

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


a250ºC

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b1000ºC

✓


c550ºC

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d1250ºC

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View Answer 1000ºC

Boron concentration is irrigation water is considered safe only upto_________________?


a0.7 ppm

✓


b1.5 ppm

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c2 ppm

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d3 ppm

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View Answer 0.7 ppm

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