Amount of water retained at low values of matric suction is... | Agrigyan

All Subjects General Agriculture Water and Soil Pollution & Remediation Fundamentals of Environmental Science, Natural Resources & Ecology Biodiversity and Conservation Statistical Methods and Experimental Designs Solid and E-Waste Management Atmospheric Pollution, Climate Change, Disasters & EIA Renewable and Non-Conventional Energy Resources

Q.21

Environmental Science- ICAR JRF/SRF 2024

MCQ (Single Correct)

Amount of water retained at low values of matric suction is mainly affected by

Soil texture Soil structure Air-entry suction Specific-surface of the soil

Q.22

Environmental Science- ICAR JRF/SRF 2024

MCQ (Single Correct)

Assystem of uniform grains in a soil structure is called as

Monodisperse Hyperdisperse Polydisperse Multidisperse

Q.23

Environmental Science- ICAR JRF/SRF 2024

MCQ (Single Correct)

What is the coordination number of cubic tetrahedral type packing of soil spherical particles?

6 8 10 12

Q.24

Environmental Science- ICAR JRF/SRF 2024

MCQ (Single Correct)

What is not an assumption of Stoke's law?

All particles have the same density The particles are rigid, smooth ad spherical Fluid flow around the particle is turbulent The particles are large enough to be unaffected by the thermal motion

Q.25

Environmental Science- ICAR JRF/SRF 2024

MCQ (Single Correct)

Apparent drought is caused by

Wrong selection of crop Late onset of monsoon Wrong selection of crop variety Early withdrawal of monsoon

General Agriculture 20
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Fundamentals of Environmental Science, Natural Resources & Ecology 24
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Fundamentals of Environmental Science, Natural Resources & Ecology

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Earth Spheres (Atmosphere, Hydrosphere, Lithosphere, Biosphere), Vertical Thermal Stratification & Lapse Rates Ecological Succession, Population/Community Dynamics, Species Interactions & Ecological Footprint Concepts Ecosystem Ecology: Structural Trophic Levels, Ecological Pyramids, Energy Flow Dynamics & Biogeochemical Cycles

General Agriculture

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Statistical Methods and Experimental Designs

2 Topics

Probability Distributions (Normal, Binomial, Poisson), Hypothesis Testing, Type I/II Errors & Degrees of Freedom Experimental Designs: CRD, RCBD, Latin Square Design (LSD), Factorial Experiments & Environmental ANOVA Modeling

Water and Soil Pollution & Remediation

3 Topics

Soil Contamination: Heavy Metals, Pesticide Xenobiotics, Saline Runoff & Remediation Technologies (Phytoremediation, Bioremediation) Active Water Pollution Dynamics: BOD, COD, DO Sag Curve, Aquatic Eutrophication & Industrial Effluent Standards (CPCB) Wastewater Engineering: Primary, Secondary, Tertiary Treatment, Aerobic/Anaerobic Stabilization Ponds & Zero Liquid Discharge (ZLD)

Environmental Science- ICAR JRF/SRF 2024

120 Questions Bilingual

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