QUIZ: UGC NET Paper 2 (Env Science)

1. The Richter scale measures an earthquake’s:

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

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

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

5. 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.

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

7. Landslide susceptibility maps are used to:

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

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

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

I. High species richness

II. High endemism

III. Significant habitat loss

11. The  Indian regional satellite navigation  system known as

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

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

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

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

16. Early warning systems for tsunamis rely primarily on:

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

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

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

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

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

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

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

24.

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

25. The “intermediate disturbance hypothesis” suggests that:

26.

Which type of radiation is most harmful to living organisms?

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

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

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

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

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

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

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

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

35. 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 🙂

36. 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 ?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

55. The rhizosphere is characterized by:

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

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

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

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

60. Flood mitigation strategies include:

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

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

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

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

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

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

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

68. What is the difference between sterilization and disinfection?

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

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

71. 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?

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

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

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

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

76. In paper chromatography, the stationary phase is:

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

78. Quorum sensing in bacteria is primarily mediated by:

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

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

81. Which GPCD utilizes microorganisms to degrade pollutants?

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

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

84. “Downcycling” of plastic waste refers to:

85. The Kjeldahl method is used to determine:

86.

Eutrophication in lakes is primarily caused by excessive input of:

1. Nitrogen

2. phosphorus

3.  Carbon dioxide

4. Heavy metals

5. Pesticides

87. Avalanches can be triggered by:

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

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

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

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

92. Which type of cloud this is

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

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

95. The Coriolis effect plays a significant role in:

96. 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.

97. Gravimetric analysis relies on the measurement of:

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

99. 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.

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