QUIZ: UGC NET Paper 2 (Env Science)

1. Which GPCD is MOST effective at removing highly soluble acidic gases like hydrogen chloride (HCl)?

2. Flood mitigation strategies include:

3. Scanning electron microscopy (SEM) provides information on:

4. The primary challenge in the design of solar ponds for electricity generation is:

5. How does the Earth’s radiation balance contribute to the greenhouse effect?

6. Which of the following is NOT a type of chromatography?

7. In a dry scrubber system, the sorbent material typically reacts with the pollutant gas to form:

8. In anaerobic digestion, the conversion of volatile fatty acids (VFAs) to methane is primarily carried out by:

9. Avalanches can be triggered by:

10. The process of converting atmospheric nitrogen gas into ammonia by bacteria is called:

11. “Downcycling” of plastic waste refers to:

12. The primary role of fungi in the biogeochemical cycling of phosphorus is:

13. The Coriolis effect plays a significant role in:

14. Quorum sensing in bacteria is primarily mediated by:

15. Which soil structure is most desirable for plant growth?

16. Which of the following factors does NOT directly influence the rate of pollutant generation in a water body?

17. Gravimetric analysis relies on the measurement of:

18.

Eutrophication in lakes is primarily caused by excessive input of:

1. Nitrogen

2. phosphorus

3.  Carbon dioxide

4. Heavy metals

5. Pesticides

19. The “breakthrough point” in an adsorber refers to:

20. A baghouse is experiencing a rapid increase in pressure drop across the filter bags. What is the MOST likely cause?

21. Which of the following gaseous pollutant control devices is NOT suitable for removing nitrogen oxides (NOx)?

22. Which type of baghouse filter media is most suitable for high-temperature applications?

23. The “A” value in soil fertility refers to:

24. Which of the following is NOT a common type of reagent used in flue gas desulfurization (FGD) systems?

25. What is the primary limitation of using steady-state models for environmental systems?

26. Identify the correct statements about sampling theory:

I. A sample is a subset of a population.

II. Random sampling ensures every member of the population has an equal chance of being selected.

III. The larger the sample size, the lower the sampling error.

27. The power output of a photovoltaic module is most sensitive to changes in:

28. The cation exchange capacity (CEC) of a soil is highest in:

29. The effectiveness of a biofilter for removing a specific gaseous pollutant depends primarily on:

30. The  Indian regional satellite navigation  system known as

31. In the Munsell color system, soil hue of 5YR indicates:

32. The use of anthropoid hazard chemicals like DDT causes reduction in fish population
because the chemical mimics the effect of

33. A key disadvantage of geothermal energy compared to other renewable sources is:

34. Why is the detection of pathogens like Giardia and Cryptosporidium challenging in water testing?

35. Which of the following is NOT a type of tidal energy system?

36. Pyrolysis and gasification are thermal treatment processes primarily used for:

37. Flame photometry is most suitable for the quantitative determination of:

38. Which of the following is NOT a factor influencing soil organic matter decomposition?

39. Which type of seismic wave is the fastest and first to arrive at a seismograph station?

40. Which soil horizon is often referred to as “subsoil”?

41. Which of the following is an example of a biological weathering process?

42. Which of the following techniques does NOT involve the use of X-rays?

43. Which type of solar cell has the highest efficiency?

44. Biomagnification of persistent organic pollutants (POPs) in food webs primarily affects:

45. The “Law of the Minimum” in plant nutrition states that:

46. Which law of thermodynamics explains the concept of energy degradation?

47. “Producer Responsibility Organizations” (PROs) are primarily involved in:

48.

Which type of radiation is most harmful to living organisms?

49.

Which of the following is an example of a non-point source of pollution?

50. 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 ?

51. The concept of “biodiversity hotspots” includes areas with:

I. High species richness

II. High endemism

III. Significant habitat loss

52. X-ray fluorescence (XRF) is best suited for the analysis of:

53. Assertion (A): The use of genetically modified organisms (GMOs) in agriculture is a controversial topic.

Reason (R): There are concerns about the potential environmental and health impacts of GMOs.

54. A coal-fired power plant releases 1000 kg of sulfur dioxide (SO2) per day. Given that the atomic weight of sulfur is 32 g/mol and oxygen is 16 g/mol, what is the molar mass of SO2? (EASY HAI 🙂

55. Identify the correct statements about biodiversity:

I. Biodiversity hotspots are regions with high species richness and endemism.

II. The Convention on Biological Diversity (CBD) is an international treaty aimed at conserving biodiversity.\

III. In-situ conservation involves preserving species in their natural habitats.

56. In flood risk assessment, the term “100-year flood” refers to:

57. Fourier transform infrared (FTIR) spectroscopy is primarily used to identify:

58. Which type of cloud this is

59. Which of the following diversity indices best captures species turnover across habitats?

60. The Kjeldahl method is used to determine:

61. In the context of climate change, “radiative forcing” refers to:

62. In paper chromatography, the stationary phase is:

63. Which of the following is NOT a common method for identifying microorganisms?

64. Which of the following is an example of a symbiotic relationship between a microbe and a plant?

65. In an Ocean Thermal Energy Conversion (OTEC) system, the working fluid typically has:

66. Which type of geothermal power plant is most suitable for areas with low-temperature geothermal resources?

67. Which GPCD utilizes microorganisms to degrade pollutants?

68. The phenomenon of industrial smog is primarily associated with which type of pollution?

69. What is the difference between sterilization and disinfection?

70. Which remote sensing technique uses sound waves to map the ocean floor?

71. The “greenhouse effect” is primarily caused by:

72. Which of the following is NOT a primary macronutrient for plant growth?

73. The concept of “environmental justice” in the context of air pollution refers to:

74. The “informal sector” in waste management refers to:

75. In an ESP, the phenomenon of “back corona” is caused by:

76. The Richter scale measures an earthquake’s:

77. Which GPCD is known for its ability to simultaneously remove both particulate and gaseous pollutants?

78. When conducting jar tests for flocculation studies, what is counted to assess the process?

79. Which of the following is NOT a precursor to a volcanic eruption?

80. Which particulate control device is MOST suitable for capturing submicron particles with high efficiency in a high-temperature industrial process?

81. The Mercalli Intensity Scale measures an earthquake based on:

82. The rhizosphere is characterized by:

83. Which soil order is associated with volcanic parent material?

84. An urban area generates 1000 tons of municipal solid waste (MSW) per day, and the waste has an average energy content of 10 MJ/kg. If a waste-to-energy plant can convert 25% of this energy into electricity, how much electricity (in MWh) can be generated daily?

85. Inductively coupled plasma (ICP) techniques offer the following advantages:

86. Which of the following is a crucial factor in avalanche formation?

87. The “Great Pacific Garbage Patch” is primarily composed of:

88. Which of the following is NOT a primary mechanism by which microbes contribute to soil aggregate formation?

89. Early warning systems for tsunamis rely primarily on:

90. The “Keeling Curve” is a graph that shows the variation of:

91. The Saffir-Simpson Hurricane Wind Scale categorizes hurricanes based on:

92. What is the primary electron acceptor in dissimilatory metal reduction?

93. Landslide susceptibility maps are used to:

94. Which of the following is NOT a type of solar thermal storage system?

95. The power coefficient (Cp) of a wind turbine is defined as the ratio of:

96. Gas chromatography (GC) separates components based on their:

97. The “intermediate disturbance hypothesis” suggests that:

98. When modeling pollutant dispersion in a river, what key assumption does the Plug Flow Reactor (PFR) model make about mixing?

99. The concept of “zero waste” aims to:

100. The “Cradle-to-Cradle” approach to waste management emphasizes: