InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Ozone hole was first discovered over:A. arcticB. tropicC. antarcticD. polar region |
| Answer» Correct Answer - C | |
| 52. |
Ozone hole is present aboveA. AntarcticaB. IndiaC. USAD. USSR |
| Answer» Correct Answer - A | |
| 53. |
Ozone gas is continously formed by the action of _______ on molecular oxygen in the stratosphere. |
| Answer» Correct Answer - UV-rays | |
| 54. |
Ozone gas is formed by the action of ………..A. UV raysB. mircoorganismsC. low temperatureD. All of these |
| Answer» Correct Answer - A | |
| 55. |
The presence of 20 or more genera of algae in a water body is an indication of high organic pollution. It isA. Water indexB. Algal diversity indexC. Pollution indexD. Algal genus index |
| Answer» Correct Answer - D | |
| 56. |
What gases are produced in anaerobic sludge digestresA. Methane and `CO_(2)` onlyB. Methane, Hydrogen Sulphide and `CO_(2)`C. Methane, Hydrogen Sulphide and `O_(2)`D. Hydrogen Sulphide and `CO_(2)` |
| Answer» Correct Answer - B | |
| 57. |
Which one of the following is a wrong statement?A. Ozone in upper part at atmosphere is harmful to animalB. Greenhouse effect is a natural phenomenonC. Eutrophication is a natural phenomenon in freshwater bodiesD. Most of the forests have been lost in tropical areas |
| Answer» Correct Answer - A | |
| 58. |
Measuring Biochemical Oxygen Demand (BOD) is a method used for:A. estimating the amount of organic matter in sewage water.B. working out the efficiency of oil driven automobile engines.C. measuring the activity of Saccharomyces cervisae in producing curd on a commercial scale.D. working out the efficiecy of R.B.Cs. About their capacity to carry oxygen. |
| Answer» Correct Answer - A | |
| 59. |
Measuring Biochemical Oxygen Demand (BOD) is a method used forA. Working out the efficiency of oil driven automobile enginesB. Measuring the activity of Saccharomyces cerevisae in producing curd on a commerical scaleC. Working out the efficiency of R.B.Cs about their capacity to carry oxygenD. Estimating the amount the organic meter in sewage water |
| Answer» Correct Answer - D | |
| 60. |
Measuring Biochemical Oxygen Demand (BOD) is a method used for:A. Measuring the activity of Saccharomyces cerevisae in producing curd on a commercial scaleB. Working out the efficiency of R.B.Cs. about their capacity to carry oxygenC. Estimating the amount of organic matter in sewage waterD. Working out the efficiency of oil driven automobile engines |
| Answer» Correct Answer - C | |
| 61. |
Measuring Biochemical Oxygen Demand (BOD) is a method used for:A. estimating the amount of organic matter in sewage waterB. working out the efficiency of oil driven automobile enginesC. measuring the activity of Saccharomyces cerevisae in producing curd on a commercial scaleD. working out the efficiency of RBCs about their capacity to carry oxygen |
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Answer» Correct Answer - A Decomposition of organic matter by microbial activity depends on oxygen availability in water. The degree of impurity of water due to the organic matter is measured in terms of BOD (Biochemical Oxygen Demand) or BOD is the oxygen in milligrams required for five days in one litre of water at `20^(@)C` for the microorganisms to metabolise organic waste. |
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| 62. |
Measuring Biochemical Oxygen Demand (BOD) is a method used forA. working out the efficiency of oil driven automobile enginesB. measuring the activity of Saccharomyces cerevisae in producing curd on a commerical scaleC. working out the efficiency of RBCs about their capacity to carry oxygenD. estimating the amount of organic matter in sewage water |
| Answer» Correct Answer - D | |
| 63. |
Kyoto Protocol was endorsed at:A. CoP-5B. CoP-6C. CoP-4D. CoP-3 |
| Answer» Correct Answer - D | |
| 64. |
Kyoto Protocol was endorsed at:A. CoP - 4B. CoP - 3C. CoP - 5D. CoP - 6 |
| Answer» Correct Answer - B | |
| 65. |
Greenhouse gases are :A. `O_(2), N_(2), NO_(2)`B. `N_(2), CO_(2), NH_(4)`C. CFC, `CO_(2) NH_(4)` and `NO_(2)`D. None of the above |
| Answer» Correct Answer - C | |
| 66. |
The Air Prevention and Control of Pollution Act came into force in:A. 1981B. 1985C. 1990D. 1975 |
| Answer» Correct Answer - A | |
| 67. |
A nonbiodegradable pollutant isA. Sulphur dioxideB. Oxides of nitrogenC. Lead vapourD. Sewage. |
| Answer» Correct Answer - C | |
| 68. |
Carbon dioxide is called greenhouse gas because it is :A. Transparent to sunlight but traps heatB. Transparent to heat traps sunlightC. Transparent to both sunlight and heatD. Used in greenhouse to increase plant growth |
| Answer» Correct Answer - A | |
| 69. |
Carbon dioxide is called greenhouse gas because it is :A. It emits lightB. It traps infra red radiationsC. It traps ultraviolet radiationsD. It is involved in photosynthesis. |
| Answer» Correct Answer - B | |
| 70. |
Carbon dioxide is called "greenhouse gas", because it:A. emits lightB. traps infrared radiationsC. traps ultraviolet radiationsD. is involved in photosynthesis |
| Answer» Correct Answer - B | |
| 71. |
Carbon dioxide is called greenhouse gas because it is :A. used in green-house to increase plant growthB. transparent to heat but traps sunlightC. transparent to sunlight but traps heatD. transparent to both sunlight and heat |
| Answer» Correct Answer - C | |
| 72. |
In India, 50 % of all sickness and 30 % of all deaths occur due to polluted and contaminatedA. SoilB. NitratesC. CarbonatesD. Phosphates |
| Answer» Correct Answer - C | |
| 73. |
$ Cyanobacterial cells are eukaryotic ! Prokaryotic cells are diploid.A. If both As and R are correct and R is correct explanation of AsB. If both As and R are correct but R is not correct explanation of AsC. If As is correct, R is wrongD. If both As and R are wrong. |
| Answer» Correct Answer - D | |
| 74. |
$ Acetabularia is the largest sized single called green algra. ! PPLO is the smallest sized prokaryote.A. If both As and R are correct and R is correct explanation of AsB. If both As and R are correct but R is not correct explanation of AsC. If As is correct, R is wrongD. If both As and R are wrong. |
| Answer» Correct Answer - B | |
| 75. |
Vas deferens arises fromA. Cauda epididymisB. Caput epididymisC. Corpus epididymisD. Rete tesis |
| Answer» Correct Answer - A | |
| 76. |
Eutrophication includes all, exceptA. Heavy growth of BGAB. Decreased DOC. Death of submerged organismD. Finally decreased COD |
| Answer» Correct Answer - D | |
| 77. |
the presence of E. coli in water indicatesA. Water is clearB. Water is fully pollutedC. Inorganic pollutionD. Faecal pollution |
| Answer» Correct Answer - D | |
| 78. |
Which the following are most suitable indicators of `SO_(2)` pollution in the enviromnent ?A. LichensB. ConifersC. AlgaeD. Fungi |
| Answer» Correct Answer - A | |
| 79. |
Which the following are most suitable indicators of `SO_(2)` pollution in the enviromnent ?A. FungiB. LichensC. ConifersD. Algae |
| Answer» Correct Answer - B | |
| 80. |
Increase in concentration of the toxicant at successive trophic levels is known as:A. biomagnificationB. biodeteriorationC. biotransformationD. biogeochemical cycling |
| Answer» Correct Answer - A | |
| 81. |
Increase in concentration of the toxicant at successive trophic levels is known as:A. Biogeochemical cyclingB. BiomagnificationC. BiodeteriorationD. Biotransformation |
| Answer» Correct Answer - B | |
| 82. |
Increase in concentration of the toxicant at successive trophic levels is known as:A. BiodeteriorationB. BiotransformationC. Biogeochemical cyclingD. Biomagnification |
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Answer» Correct Answer - D Increase in concentration of the toxicant at successive trophic levels is known as biomagnification. |
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| 83. |
Increase in concentration of the toxicant at successive trophic levels is known as:A. Algal bloomB. biomagnificationC. EutrophicationD. Accelerated eutrophication |
| Answer» Correct Answer - B | |
| 84. |
Snow blindness is caused byA. UV-B raysB. Global warmingC. Radioactive pollutionD. Deforestation |
| Answer» Correct Answer - D | |
| 85. |
Snow blindness is caused byA. UV-AB. UV-BC. X-raysD. UV-C |
| Answer» Correct Answer - B | |
| 86. |
Snow blindness is caused due toA. Ozone holeB. Nuclear winterC. Acir rainD. Green house effect. |
| Answer» Correct Answer - A | |
| 87. |
Ozone hole enhancesA. UV radiations reaching earthB. Number of cataractsC. Skin cancersD. All the above |
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Answer» Correct Answer - D Ozone hole enhances UV radiations reaching earth, number of cataracts and skin cancers. |
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| 88. |
The thickness of ozone in a column of air from the ground to the top of the atmosphere is measured in terms of:A. Decibel unitsB. Pascal unitsC. Svedber unitsD. Dobson units |
| Answer» Correct Answer - D | |
| 89. |
Global agreement to reduce release of ODS isA. Vienna ConventionB. Rio de Janeiro ConferenceC. Kyoto ProtocolD. Montreal Protocol |
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Answer» Correct Answer - D Global agreement to reduce release of ODS is Mon- treal Protocol. |
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| 90. |
The thickness of ozone in a column of air from the ground to the top of the atmosphere is measured in terms of:A. Decibel unitsB. Pascal unitsC. Svedberg unitsD. Dobson units |
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Answer» Correct Answer - D Thickness of ozone in column of air from ground to top of atmosphere is measured in terms of Dobson Units (DU). |
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| 91. |
It is used in refrigerator and air conditioners and it is a source of `Cl^(-)` :A. BenzeneB. `CH_4`C. BenzopyreneD. Freon |
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Answer» Correct Answer - D A chemical used in refrigerators and air conditioners and is a source of Cl is freon. |
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| 92. |
Freon gas causing stratospheric `O_(3)` depletion is mainly released from :A. refrigeratorB. automobileC. thermal power plantD. steel industry |
| Answer» Correct Answer - A | |
| 93. |
Freon gas causing stratospheric `O_(3)` depletion is mainly released from :A. RefrigeratorsB. AutomobilesC. Thermal power plantsD. Steel industry |
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Answer» Correct Answer - A Freon gas causing stratosphere `O_3` depletion is mainly released from refrigerators. |
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| 94. |
Freon gas causing stratospheric `O_(3)` depletion is mainly released from :A. RefrigeratorsB. AutomobilesC. Thermal power plantsD. Steel industry. |
| Answer» Correct Answer - A | |
| 95. |
`SO_(2)` pollution causesA. PlasmolysisB. Destruction of cell wallC. Destruction of golgi bodiesD. Destruction of chlorophyll. |
| Answer» Correct Answer - D | |
| 96. |
World environment day isA. 28th Feb.B. 5 th juneC. 7th Aug.D. 10th April |
| Answer» Correct Answer - B | |
| 97. |
The world environment day is celebrate onA. 6th of JuneB. 5th of JuneC. 6th of AugustD. 5th of May |
| Answer» Correct Answer - B | |
| 98. |
World environment day isA. 25th DecB. 20th SeptemberC. 5th juneD. 9th july. |
| Answer» Correct Answer - C | |
| 99. |
`SO_(2)` pollution causesA. MitochondriaB. ChloroplastsC. Golgi bodiesD. Vacuoles |
| Answer» Correct Answer - B | |
| 100. |
The following figure shows the phenomenon of A. Greenhouse effectB. Ozone layer depletion .C. DeforestationD. Eutrophication |
| Answer» Correct Answer - A | |