Quiz Posted inQuiz Complete Syllabus Quiz: Environmental Science Posted by kanwar August 29, 20241 257 MEGA QUIZ 4 (Environmental Science) 50 QsTime: 1 HrNo NEGATIVE Marking.Attempt All Questions 1 / 50 1. Assertion (A): A building with a GRIHA rating of 71-80 points is considered a 3-star rated building.Reason (R): The GRIHA rating system categorizes buildings based on their environmental performance, with higher points indicating better sustainability.A) Both A and R are true, and R is the correct explanation of A.B) Both A and R are true, but R is not the correct explanation of A.C) A is true, but R is false.D) A is false, but R is true.E) Both A and R are false. C D E B A 2 / 50 2. If s² is the variance of a sample of size N drawn from a normal population with variance σ, then Ns²/σ² has which one of the following distribution with (N-1) degrees of freedom ? Student's t Poisson Chi-square Normal 3 / 50 3. A) Nuclear fission involves splitting heavy atomic nuclei.B) Breeder reactors produce more fissile material than they consume.C) Nuclear waste remains radioactive for centuries.D) Nuclear energy does not contribute to greenhouse gas emissions.E) Chernobyl was a nuclear fusion accident.F) Thorium can be used as a nuclear fuel.Correct Answers ABCDF ABCDEF ACEF ABCDE 4 / 50 4. A) Soil pH affects nutrient availability to plants.B) Soil texture determines water retention capacity.C) Organic matter increases soil fertility.D) High sand content increases soil’s water-holding capacity.E) Soil structure is not influenced by biological activity.F) Soil color has no impact on soil temperature.Correct Answers: A & C Only ACD ABC ABCD 5 / 50 5. Assertion (A): Eco-labeling schemes are voluntary programs.Reason (R): They encourage businesses to market their products based on environmental performance.A) Both A and R are true, and R is the correct explanation of A.B) Both A and R are true, but R is not the correct explanation of A.C) A is true, but R is false.D) A is false, but R is true C A D B 6 / 50 6. Which of the following scenarios would most likely increase species diversity in an ecosystem? Establishment of an ecotone between two habitats. Reduction in habitat complexity Homogenization of the landscape through agriculture. Introduction of a highly competitive invasive species. 7 / 50 7. Which of the following materials would be least preferable under GRIHA’s criteria for sustainable building materials?A) Recycled steelB) BambooC) Virgin aluminumD) Fly ash bricksE) Low-VOC paints D A E B C 8 / 50 8.In a lake, if the DO level drops to zero in the hypolimnion (bottom layer), what would be the immediate consequence for the Redox potential (Eh)? Eh would oscillate due to microbial activity Eh would increase due to anaerobic conditions Eh would decrease due to reducing conditions Eh would remain unchanged 9 / 50 9. Which of these factors affect hydraulic conductivity?A) Porosity of the medium B) Viscosity of the fluid C) Temperature of the fluid D) Pressure gradient E) Size and shape of grains in the medium F) Presence of fractures or fissures All except C All except D All except E All 10 / 50 10. Which of the following can be used as groundwater tracers?A) TritiumB) Chlorofluorocarbons (CFCs)C) Stable isotopes of oxygen and hydrogenD) Radon All except C All All except D All except B 11 / 50 11. Assertion (A): Nuclear energy is considered a renewable energy source.Reason (R): Uranium, the primary fuel for nuclear reactors, is abundant enough to be considered renewable. A is false, but R is true. Both A and R are true, and R is the correct explanation of A Both A and R are false. A is true, but R is false 12 / 50 12. Which of the following statements about the hydrological cycle are correct?A) The hydrological cycle is driven by solar energy.B) Evaporation from oceans contributes more to atmospheric moisture than transpiration from plants.C) Sublimation is the process of ice turning directly into water vapor.D) Infiltration is the movement of water through the soil into groundwater.E) Runoff always leads to increased soil erosion.F) Condensation is the process by which water vapor becomes liquid water. B,D,E,F B,C,D,E,F A,B,C,D,F A,B,D,E,F 13 / 50 13. Which of the following are function of the Conference of the Parties (COP) under environmental conventions?A) Reviewing progress in implementation.B) Making decisions to promote the convention’s effective implementation.C) Amending the convention as necessary.D) Enforcing penalties on non-complying countries.E) Adopting protocols to the convention. ABDE ABCE ABCD ACDE 14 / 50 14. Which of the following ions, when present in the atmosphere, can lead to the formation of new aerosol particles, thereby affecting cloud formation and climate? Chloride ions (Cl⁻) Iodide ions (I⁻) Fluoride ions (F⁻) Bromide ions (Br⁻) 15 / 50 15. In a non-steady-state Continuous Stirred Tank Reactor (CSTR) model, which factor most significantly impacts the rate of change of pollutant concentration? Reactor volume Initial pollutant concentration Reaction rate constant Difference between inflow and outflow rates 16 / 50 16. In the context of the Gaussian plume model, which of the following factors does NOT directly affect the dispersion parameters σ_y and σ_z?A) Wind speedB) Stability classC) Distance from the sourceD) Stack height B D C A 17 / 50 17. Which correct match of the terms with their descriptions:A) Aquifer – Layer of rock or sediment that can yield economically significant quantities of waterB) Aquiclude – Layer that can neither store nor transmit waterC) Aquitard – Layer that can store but not transmit water easilyD) Aquifuge – Layer that can transmit water but not store itE) Confined Aquifer – Bounded above and below by impermeable layersF) Unconfined Aquifer – Top boundary is the water table B, C,D,E, F A, D, C, E, F A, B, C,D, F A, B, C, E, F 18 / 50 18. Which of the following are challenges associated with bioenergy?A) Competition with food crops for land.B) High energy return on investment (EROI).C) Emissions of greenhouse gases during production.D) Limited technological development for conversion processes.E) Soil degradation due to intensive biomass cultivation.F) Always carbon-negative due to plant growth. A, C, E A, C, D, E A, C, E, F A, C, D 19 / 50 19. In a wind rose diagram, if the longest spokes are towards the northeast, this indicates: Winds from the northwest to southeast are most common Winds from the southwest to northeast are most common Winds from the northeast to southwest are most common Winds from the southeast to northwest are most common 20 / 50 20. Assertion (A): Soil with high clay content has good drainage.Reason (R): Clay particles are small and tightly packed, contract water movement.A) Both A and R are true, and R is the correct explanation of A.B) Both A and R are true, but R is not the correct explanation of A.C) A is true, but R is false.D) A is false, but R is true.E) Both A and R are false. A E D C B 21 / 50 21. Consider an ecosystem where a keystone species is removed. What would you predict about the niche of other species in this ecosystem? Their niches would expand due to reduced competition. A new species would immediately fill the keystone species' niche. Their niches would contract due to increased competition. The niches would remain unchanged as keystone species do not affect niche dynamics. 22 / 50 22. If the blade length and wind velocity are both doubled, how many times will the power output increase? 4 16 32 8 23 / 50 23. In a system undergoing a process where both heat transfer and work occur, if the process is reversible and adiabatic, which of the following is true according to the first law of thermodynamics? ΔU = W ΔU = Q ΔS > 0 ΔU = -W 24 / 50 24. A) Bioenergy – Energy derived from organic materialsB) Nuclear Fusion – Combining light atomic nuclei to release energyC) Soil Texture – Refers to the relative proportions of sand, silt, and clayD) E-waste – Discarded electronic devicesE) Cation Exchange Capacity (CEC) – Measure of soil’s ability to retain nutrientsF) Half-life – Time taken for half of a radioactive substance to addCorrect Matches BCDEF ABCDE ABCEF ABCDEF 25 / 50 25. Which amendments to the EIA Notification 2006 introduced the concept of ‘Prior Environmental Clearance’?A) 2009 AmendmentB) 2011 AmendmentC) 2020 AmendmentD) None of Above A D B C 26 / 50 26. In the Munsell color system, soil hue of 5YR indicates: Yellow-red Red-yellow Green-yellow Blue-green 27 / 50 27. Given that the pressure at sea level is 1013 hPa, at what altitude would you expect the pressure to be roughly half of this value, assuming a standard atmosphere? 9 km At tropopause 5.5 km 12 km 28 / 50 28. The Air Quality Index (AQI) value of 301-500 falls under which category? Hazardous Moderate Unhealthy Good 29 / 50 29. The Stockholm Conference on Human Environment, 1972, is significant because:A) It led to the creation of the UNFCCC.B) It resulted in the signing of the Kyoto Protocol.C) It focused solely on climate change.D) It banned the use of DDT worldwide.Correct Answers A Only A D A B None 30 / 50 30. Which of the following statements about Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD), and Chemical Oxygen Demand (COD) are true?A) DO levels in water are inversely proportional to temperature.B) BOD measures the amount of oxygen required by bacteria to decompose organic matter.C) COD is always higher than BOD because it includes non-biodegradable organic matter.D) High BOD indicates clean, oxygen-rich water.E) COD is determined by strong chemical oxidants like dichromate.F) BOD and COD are used to assess water quality but COD is faster to measure. A, B, C, F B, C, D, E A, B, C, E, F B, C, D, F 31 / 50 31. How does the Earth’s radiation balance contribute to the greenhouse effect? By emitting long wavelengths By increasing atmospheric pressure By absorbing all radiation By reflecting solar energy 32 / 50 32. Consider a material balance for a chemical reaction where reactants A and B form product C. If the reaction is at equilibrium in a closed system, and you suddenly remove some of C, according to Le Chatelier’s principle: The reaction will shift to produce more C. The reaction will stop until more C is added back. The system will produce more A and B to counteract the change. The temperature of the system must decrease to maintain equilibrium. 33 / 50 33. The “Law of the Minimum” in plant nutrition states that: The most abundant nutrient determines plant growth Micronutrients are less important than macronutrients Plant growth is limited by the scarcest nutrient Plants need all nutrients in equal amounts 34 / 50 34. If the environmental lapse rate is less than the dry adiabatic lapse rate, the atmosphere is: Absolutely stable Absolutely unstable Conditionally unstable Neutrally stable 35 / 50 35. Why is the detection of pathogens like Giardia and Cryptosporidium challenging in water testing? They have a short survival time outside their hosts They are easily removed through filtration They are resistant to chemical disinfectants They do not occur in water sources 36 / 50 36. A regression model with multiple independent variables is called a: Logistic regression model Poisson regression model Multiple regression model Simple linear regression model 37 / 50 37. Which type of radiation is primarily responsible for heating the atmosphere during the night? Infrared from the atmosphere Longwave terrestrial radiation Shortwave radiation Ultraviolet 38 / 50 38. Assertion (A): Excessive groundwater extraction can lead to land subsidence.Reason (R): When groundwater is removed, the soil compacts, reducing pore space.A) Both A and R are true, and R is the correct explanation of A.B) Both A and R are true, but R is not the correct explanation of A.C) A is true, but R is false.D) A is false, but R is true. D A B C 39 / 50 39. In the process of water purification, if the sedimentation step is followed by coagulation and flocculation, what is the primary purpose of adding coagulants? To neutralize the charges on particles, allowing them to clump together To remove dissolved organic compounds To increase the sedimentation rate by increasing particle density To increase the pH of the water 40 / 50 40. Match the biome with its typical animal:A) Tundra – Polar bearB) Taiga – MooseC) Grassland – GiraffeD) Deciduous Forest – White-tailed deerE) Highland Icy Alpine – Mountain goatF) Chaparral – Kangaroo ratCorrect pairs are A, B, D, E A, B, D, E, F A, B, D, F B, D, E, F 41 / 50 41. Biome with its characteristic feature:A) Tundra – High biodiversityB) Taiga – Dominated by coniferous treesC) Grassland – Frequent firesD) Deciduous Forest – Trees lose leaves seasonallyE) Highland Icy Alpine – Above the tree lineF) Chaparral – Mediterranean climate with wet wintersWhich pairs are correct ? B C D E C D E F C D F B C D E F 42 / 50 42. Which of the following is NOT a criterion under the Sustainable Site Planning category in GRIHA?A) Green InfrastructureB) Low-Impact Design StrategiesC) Design to Mitigate Urban Heat Island EffectD) Energy OptimizationE) Topsoil Preservation B D C A E 43 / 50 43. In terms of ecological habitats, which of the following would be least likely to support a high level of species diversity? A tidal pool. A coral reef ecosystem. A large, homogeneous agricultural field. A rainforest canopy. 44 / 50 44. In a steady-state, steady-flow process, if the system undergoes an adiabatic process where no heat is exchanged, and work is done by the system, which of the following must be true? The temperature of the system remains constant. The entropy of the system must increase due to irreversibilities The internal energy of the system decreases. The enthalpy of the system increases. 45 / 50 45. The Almatti Dam dispute primarily involved which two states?A) Maharashtra and Andhra PradeshB) Karnataka and Andhra PradeshC) Kerala and Tamil NaduD) Odisha and Andhra Pradesh D C A B 46 / 50 46. Which of the following is a key principle of the National Environmental Policy, 2006?A) Sustainable developmentB) Environmental justiceC) Economic growth over environmental concernsD) Promotion of nuclear energyE) Decentralization of environmental governanceF) Mandatory environmental education in schools EF ABEF AEF ABE 47 / 50 47. During the hydrological cycle, which process directly contributes to the increase in dissolved oxygen (DO) in water bodies? Precipitation Runoff Evaporation Transpiration 48 / 50 48. Which of the following best describes the effect of an inversion layer on pollutant dispersion? Traps pollutants below the inversion layer Causes pollutants to disperse more rapidly Enhances vertical mixing Increases ground-level concentrations due to enhanced mixing 49 / 50 49. Which scale of measurement has a true zero point, allowing for meaningful ratios and comparisons? Ordinal Ratio Interval Nominal 50 / 50 50. Precipitation is most likely to occur when: Air pressure and humidity both are increasing. The mixing ratio equals the saturation mixing ratio. The environmental lapse rate is more than the dry adiabatic lapse rate. The relative humidity is low, but temperature is high. Your score isThe average score is 41% 0% Restart quiz Author kanwar Kanwar Bhan Godara UGC NET JRF Environmental Science View all posts kanwar Kanwar Bhan Godara UGC NET JRF Environmental Science View All Posts Post navigation Previous Post Types of VariableNext PostImportant Numerical Questions for NET GATE: Atmosphere
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