Soil Science MCQ – 5

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Q.1: N content in Humic and Fulvic acids are?

1. 1-4%
2. 2-5%
3. 0.1-0.4%
4. 5-10%

Q.2: Lignins mainly decomposed by?

1. Anaerobic bacteria
2. Aerobic bacteria
3. Actinomycetes
4. Fungi

Q.3: In neutron moisture meter energy of thermalized electron is?

1. 3 eV
2. 0.3 eV
3. 0.03 eV
4. 0.003 eV

Q.4: Which kind of Soil having high Soil consistency?

1. Wet soil
2. Dry soil
3. Moist soil
4. Alkali soil

Q.5: Harvest index is 100% for?

1. Fodders
2. Pulses
3. Root crops
4. Fruits

Q.6: Legumes fails to develop nodule if pH is less than?

1. 4.5
2. 5.0
3. 6.0
4. 7.0

Q.7: Which type of oil cakes are having higher C:N?

1. Edible oilcakes
2. Non-edible
3. Both A and B
4. None of the above

Q.8: FYM mainly include?

1. Dung
2. Urine
3. Litters
4. All of the above

Q.9: Which chemical is used to differentiate between Light and Heavy minerals?

1. Lactophenol
2. Bromocresol
3. Bromoform
4. Glutamate

Q.10: Which one is Non-ferromagnesian mineral?

1. Feldspar
2. Quartz
3. Pyroxene
4. Amphibole

Soil Science MCQ – 5

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