MCQs Agronomy [3] Posted on April 5, 2023June 6, 2023Author admin 1 Please enter your email: 1. In aquatic ecosystem, benthos are mostly___________ None Autotrophs Chemoautotrophs Detrivores 2. ___________________ herbicides can kill all kinds of weeds Both Non-selective None Selective 3. ________ is the scientific study of repairing disturbed ecosystems through human intervention Restoration ecology Conservation biology Community ecology Management ecology 4. In waterlogged soils, like in paddy fields, the concentration of ______ greenhouse gas is high Carbon Dioxide Nitrous Oxide Oxygen Methane 5. __________is a macronutrient Calcium Boron Zinc Cobalt 6. Hypogeal stand establishment occurs in ______ plants Wheat Bean groundnut Cotton 7. Global warming potential of Methane is _________ times that of CO2 310 times higher 21 times higher Equal 120 times higher 8. Initial uptake of water by a dry seed from the surrounding medium is called_________ Emergence Dormancy Germination Imbibition 9. A mass extinction is_______ the extinction of small-sized species the simultaneous extinction of many species the simultaneous extinction of few species the extinction of large-sized species 10. ________ plants can tolerate higher concentration of salts Mesophytes Halophytes Heliophytes Xerophytes 11. ________________is a compound fertilizer Nitrophos All Sulphate of Potash DAP 12. ________________is a simple fertilizer None Urea Sulphate of Potash DAP 13. All types of weeds can be used for making compost. True Conditional Not suitable False 14. _______________ organisms obtain their food from decaying organic matter Producers Detrivores Herbivores Omnivores 15. __________ are the two most important factors that affect seed quality Soil nutrients and CO2 CO2 and Temperature Temperature and Relative Humidity Oxygen and light 16. _____________ are crop plants growing out of their proper place Relative plants Perennial weeds Absolute weeds Rouge plants 17. ____________ are the major form of carbohydrates stored in plant seeds Hemicellulose Mucilage Starch Pectin 18. _____________ is a cultural method of weed control by avoiding weed emergence in the field Eradication Puddling Integrated weed control Pesticide application 19. __________ is a single factor that regulates all other factors of environment Relative Humidity Temperature Precipitation Solar Radiation 20. Chemical formula of Murate of Potash (MOP) is _________________ KCl K2SO4 None KH2PO4 Loading … Question 1 of 20
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