Unit 1 Question Bank PDF

Unit 1 question bank est 1.Nuclear accidents global temperature. a) Increase b) Decrease c) Multiply d) None Answer: - Option A Explanation:-Nuclear accidents causes decrease in temperature. 2.Environmental education is important onl...

Unit 1 question bank est 1.Nuclear accidents global temperature. a) Increase b) Decrease c) Multiply d) None Answer: - Option A Explanation:-Nuclear accidents causes decrease in temperature. 2.Environmental education is important only at a) Primary school stage b) Secondary school stage c) Collage stage d) All of the above Answer: - Option D Explanation:-Environmental education is important at all stage. 3.The 4Rs principle is applicable for… a) Public awareness b) Environmental protection c) Saving natural resources d) All of the above Answer: - Option D Explanation:-The 4Rs principle is applicable for Public awareness,Environmental protection and Savingnatural resources 4.Ozone layer is found in.... a)Thermosphere b)Stratosphere c)Troposphere d)Mesosphere Answer: - Option B Explanation:-Ozone layer is found in Stratosphere. 5.Which one of the following is an abiotic component of the ecosystem? a) Bacteria b) plants c) humus d) Fungi Answer: - Option C Explanation:-Humus is an abiotic component of the ecosystem 6.Major cause of increment in population growth is...… a) decrease in birth rate b) decrease in mortality rate c) Illiteracy d) none of the above Answer: - Option D Explanation:-decrease in mortality rate is a Major cause of increment in population growth. 7.Zone consisting air, water and soil is known as.... a) Atmosphere b) Hydrosphere c) Biosphere d) Lithosphere Answer: - Option C Explanation:-Zone consisting air, water and soil is known as Biosphere. 8.Abiotic environment does not include a)Air b)Water c)Soil d)Plants Answer: - Option D Explanation:-Abiotic environment means non-living things. 9.Physical environment is also called as… a) Abiotic environment b) Biotic environment c) Man made environment d) Psychological environment Answer: - Option A Explanation:-Physical environment is also called as Abiotic environment 10. The production of biogas from the waste is includes in...… a) Reduce b) Reuse c) Recycle d) Recover Answer: - Option D Explanation:-The production of biogas from the waste is includes in Recover 11. % of the Earth's surface is covered with water. a) 20 b) 80 c) 71 d) 100 Answer: - Option C Explanation:-71 % of the Earth's surface is covered with water. 12. Formation of Ozone is? a) Oxidation Reaction b) Reduction Reaction c) Photochemical Reaction d) None of the above Answer: - Option C Explanation:-Formation of Ozone is Photochemical Reaction 13. The environment which has been modified by human a) Natural environment b) Anthropogenic environment c) Modern environment d)Urban environment Answer: - Option C Explanation:-The environment which has been modified by human is Anthropogenic environment 14. One of the following is not a type of environment. a)Physical environment b) Man made environment c)Social environment d)Hydrosphere Answer: - Option D Explanation:-Hydrosphere is not a type of environment. 15. O3 is known as… a)Atmosphere b)Ozone c)Oxygen d)All of these Answer: - Option B Explanation:-O3 is known as Ozone 16. Environmental education emphasises on a) Air b) Water c) Environmental issues d) None [ Answer: - Option C Explanation:-Environmental education emphasises on Environmental issues 17. Our natural environment has and values. a)Qualitative and quantitative b)Preservation and conservation c)Utilization and recreation d)None of the above Answer: - Option A Explanation:-Our natural environment has Qualitative and quantitative values. 18. Land covers up only % of the earth‟s surface a) 10 b) 29 c) 40 d) 30 Answer: - Option B Explanation:-.Land covers up only 29 % of the earth‟s surface 19. The production of biogas from the waste is includes in...… a)Reduce b)Reuse c)Recycle d)Recover Answer: - Option D Explanation:-The production of biogas from the waste is includes in Recover 20. The 4Rs principle is applicable for… a)Public awareness b)Environmental protection c)Saving natural resources d)All of the above Answer: - Option D Explanation:-The 4Rs principle is applicable in all areas. 21. Ozone layer is found in.... a)Thermosphere b)Stratosphere c)Troposphere d)Mesosphere Answer: - Option B Explanation:-Ozone layer is found in Stratosphere. 22. Which one of the following is an abiotic component of the ecosystem? a) Bacteria b) plants c) humus d) Fungi Answer: - Option C Explanation:-Humus is an abiotic component of the ecosystem 23. Which of the following is the example of impact of development activities on Hydrosphere? a) Air Pollution b) Soil Pollution c) Noise Pollution d) Water Pollution Answer: - Option D Explanation:-Water Pollution is impact of development activities on Hydrosphere 24. Nuclear accidents global temperature. a)Increase b)Decrease c)Multiply d)None Answer: - Option A Explanation:--Nuclear accidents causes decrease in temperature. 25. The Environmental awareness starts with a)Country b)State c)Individual d)None of these Answer: - Option C Explanation:-The Environmental awareness starts with Individual 26. For sustainable development R are followed a)5 b)2 c)4 d)3 Answer: - Option C Explanation:-For sustainable development 4 R are followed 27. The amount of solar radiation reaching the surface of the earth is called as a) Solar flux b)Reflected light c)Minerals d)solvents Answer: - Option B Explanation:-The amount of solar radiation reaching the surface of the earth is called as Reflected light 28. Acid rain occurs due to dissolution of in rain water a)Gases b)Particles c)Smoke d)Soot Answer: - Option A Explanation:-.Acid rain occurs due to dissolution of gases in rain water 29. Hydrosphere covers about of the surface of earth a)70% b)90% c)60% d)50% Answer: - Option A Explanation:-Hydrosphere covers about 70 % of the surface of earth 30. Color of ozone molecule is a)Pale Blue b)White c)Pale Yellow d)Pale Green Answer: - Option A Explanation:-Color of ozone molecule is Pale Blue 31. Major cause of Ozone depletion is due to which chemical ? a)Chlorofluorocarbons b)Polyphenols c)Dioxins d)None of the above Answer: - Option A Explanation:-Major cause of Ozone depletion is due to Chlorofluorocarbons 32. Acid rain contains..… a) Sulphuric acid b) Hydrochloric acid c) Oxalic acid d) Acetic acid Answer: - Option A Explanation:-Acid rain contains Sulphuric acid 33. Biosphere is a) The solid shell of inorganic materials on the surface of the Earth b)The thin shell of organic matter on the surface of earth comprising of all the living things c)The sphere which occupies the maximum volume of all the spheres d)All of the above Answer: - Option B Explanation:-Biosphere is The thin shell of organic matter on the surface of earth comprising of all the living things. 34. The portion of the earth and its environment which can support life is known as a) Crust b) exosphere c) Biosphere d) Mesosphere Answer: - Option C Explanation:-The portion of the earth and its environment which can support life is known as Biosphere 35. How is the atmosphere, hydrosphere and lithosphere connected ? a) Hydrological cycle b) Nitrogen cycle c) Oxygen cycle d) Carbon cycle Answer: - Option D Explanation:-By using Carbon cycle atmosphere, hydrosphere and lithosphere connected 36. Exchange of outgoing and incoming radiations that keep Earth warm is known as a) greenhouse effect b) radiation effect c) infrared effect d) ozone layer depletion Answer: - Option A Explanation:-Exchange of outgoing and incoming radiations that keep Earth warm is known as greenhouse effect 37. Public awareness of environment creates ---------------------- a) Environment protection b) Environment degradation c) Environmental improvement d) Environmental cultivation Answer: - Option A Explanation:-Public awareness of environment creates Environment protection. 38. Biotic environment includes a) producers b) Consumers c) Decomposers d) All above e) Answer: - Option D Explanation:-Biotic environment includes producers ,Consumers and Decomposers. DEPARTMENT OF E & Tc ENGINEERING 39. What type of radiation is trapped on the earth's surface by the green house effect? a) UV rays b) ? -rays c) X-rays d) IR rays Answer: - Option A Explanation:-UV radiation is trapped on the earth's surface by the green house effect 40. The 4Rs principle is applicable in… a) Agriculture areas b) Industrial areas c) Municipal areas d) All of the above Answer: - Option D Explanation:-The 4Rs principle is applicable in all areas. 41. DDT is a pesticide which is A. Not soluble in water B. More soluble in fat than water C. Less soluble in fat than water D. Not soluble in fat Answer : B 42. National Science Day is celebrated on A.22 Feburary B.28 Feburary C.26 Feburary D.27 Feburary Answer : B 43. Environmental friendly products are given ISO certification called ISO. A.12000 B.13000 C.14000 D.15000 Answer : C 44. A sudden uncontrolled descent of a mass of earth under the force gravity is called A. soil erosion B. mining C. earth quake D. landslide Answer : D 45. Public awareness can be generated by A. Campaigns B. Posters C. Mass Media D. All of the above Answer : D 46. Along with government, are also found effective to educate people regarding environment protection. A. Company B. School C. None of above D.NGOs Answer : D 47. The study of living organisms with the environment is known as A. Ecosystem B. Environment C. Community D. Ecology Answer : D 48. The word „Environment‟ is derived from A. Greek B. French C. Spanish D. English Answer : B 49. WWF stands for A. World Wildlife fund for Nature B. World Wildlife found in Nature C. World Wide fund for Nature D. World Wide fund for Wildlife Answer : C 50. The collection of the same species within an area is called a population. A. True B. False Answer : A 51. World environment day is on A.5 May B.5 June C.18 July D.16 August Answer : B 52. Social awareness encourages people to use A. Biomass and solar energy B. Fossil fuel C. Both A & B D. Electricity Answer : A 53. Rain fall is measured in.........units A. Pounds B.mm/cms C. Kg/Tons D. Metres Answer : B 54. Conservation of forests by planting trees is A. Afforestation B. None of the abve C. Reforestation D. Deforestation Answer : A 55. Environmental Studies means A.is an interdisciplinary academic field B. includes the natural environment, built environment, and the sets of relationships between them C. methodically studies human interaction with the environment D. all of the above Answer : D 56. Environmental degradation is due to A. rapid industrialization B. deforestation C. growing urbanization D. all above Answer : D 57. Non-Governmental Organizations A. are located primarily in more developed countries B. have become a powerful aspect of environmental protection C. Work for a social change D. All of the above Answer : D 58. Addition of contaminants to atmosphere causing disturbance in natural condition A. Polluter B. Polluting C. Pollution D. Pollutant Answer : C 59. The Unlimited exploitation of nature by human being has not resulted in A. Health Problem B. Decrease in biodiversity C. Tsumanis D. Environmental pollution Answer : C 60. Acid rain occurs due to dissolution of in rain water A. Smoke B. Particles C. Gases D. Soot Answer : C. 61.The unlimited Exploitation of Nature by Human being resulted in.. A. Environmental pollution B. Health Problems C. decrease in biodiversity D. all the given Answer : D 62.The conservation of natural resources A. Was not encouraged in ancient India B. was encouraged in ancient india. C. Is recently being used in India D. None of these Answer : B 63.The Global Action plan adopted at Earth summit held at Rio de Janeiro in June 1972 is also known as A. Agenda 20 B. Agenda 22 C. Agenda 23 D. Agenda 21 Answer : D 64.Environmental Issues are discussed and solved in subject A. Sociology B. Economics C.EVS D. None of the above Answer : C 65. As per the French word Environner means A. Atmosphere B. Earth & Sun C. Encircle & Surround D. Earth & Energy Answer : C 66. USCB is short form for A. United states Census Bureau B. United states Community Bureau C. United Society for Communist & Beaurocrates D. None of the above Answer : B 67. Earth Day is on A.Jan-22 B.Feb-22 C.Mar-22 D.Ape-22 Answer : D 68. Environmental Studies: A.is an interdisciplinary academic field B. methodically studies human interaction with the environment C. includes the natural environment, built environment, and the sets of relationship between them D. all of the above Answer : D 69. Environmental Studies does not involve: A. psychology B. demography C. ethics D. literature Answer : D 70. Which of the following global trend is of great concern for the future of our environment? A. degradation of fertile soils B. change in the global atmosphere C. species extinction leading to the loss of biodiversity D. All of the above Answer : D 71. High level radioactive waste can be managed in which of the following ways? A. Open dumping B. Composting C. Incineration D. Dumping in sealed container Answer : D 72. The objective of environmental education is A. Raise consciousness about environmental education B. To teach environmentally appropriate behaviour C.Create an environmental ethic that fosters awareness about ecological inter-dependence of economics, social and political D.All of the above Answer : D 73. Which of the following is an example of impact of development activities on the Hydrosphere? A. Air pollution B. Noise pollution C.Soil erosion D.Water pollution Answer : D 74. Important abiotic factor in environment include which of the following? A. Temperature B. Wind C. Water D. All of the above Answer : D 75. Atmosphere may extents to a height of.......km above the earth surface A) 80 B) 8000 C) 800 D) 8 Answer : C 76. Which of the following is the correct sequence of 4Rs principle in waste hierarchy? A.Reduce-Reuse-Recycle-Recover B.Recover-Recycle-Reuse-Reduce C.Recycle – Recover – Reuse- Reduce D.Reuse-Recover-Reduce - Recycle Answer : A 77.. Why carbon dioxide is called a greenhouse gas? a) Because they absorb heat b) Because they absorb moisture c) Because they absorb oxygen d) Because they absorb hydrogen Answer: a Explanation: Carbon dioxide, water vapor, methane, ozone, nitrous oxide, and fluorinated gases are examples of greenhouse gases. Because they absorb heat, these molecules in our atmosphere are known as greenhouse gases. 78. Which of the following statements means water vapor? a) Water vapor is the gaseous phase of water b) Water vapor is the liquid phase of water c) Water vapor is the solid phase of water d) All of the mentioned Answer: a Explanation: Water vapor or aqueous vapor is the gaseous phase of water. It is one state of water within the hydrosphere. Water vapor can be produced from the evaporation or boiling of liquid water or from the sublimation of ice. Water vapor is transparent, like most constituents of the atmosphere. 79. Which of the following is a renewable source of energy? a) Ocean currents b) Solar energy c) Biomass d) All of the above Answer: d Explanation: Solar energy, wind, falling water, the earth‟s heat (geothermal), plant materials (biomass), waves, ocean currents, temperature differences in the oceans, and the energy of the tides are all renewable resources. 80. he size of the particles categorized as aerosols? a) Less than 0.01 micron b) Greater than 1 micron c) Less than 1 micron d) Between 0.01-1 micron Answer: d Explanation: Aerosol is made up of solid/fluid particles with sizes ranging from 0.01 to 1 micron. 81. Which of these is NOT a primary pollutant? a) Oxygen b) Ground-level ozone c) Carbon monoxide d) Carbon dioxide Answer: a Explanation: Ozone is not a primary pollutant since it is formed by the photo-chemical reaction of oxygen with the UV rays and not directly discharged into the atmosphere by a source. 82. Which gas is released when alum is added to water? a) Ca (OH)3 b) CO2 c) Al (OH)3 d) CaSO4 Answer: b Explanation: Carbon dioxide gas is released when alum is added to water, which is corrosive to metals. 83. Which of the following plants is extremely sensitive towards sulphur dioxide? a) Tomato b) Onion c) Potato d) Corn Answer: a Explanation: Tomato is sensitive towards sulphur dioxide whereas onion, potato and corn are relatively tolerant. 84. Which of the following is not commonly used as a filter material in the treatment of water? a) Garnet sand b) Crushed rock c) Sand d) Anthracite Answer: b Explanation: Sand, Anthracite and Garnet sand are used as a filter material but crushed rock is not used in the treatment of water. 85. The value of specific gravity for Garnet sand is a) 4.2 b) 5.1 c) 3.6 d) 2.1 Answer: a Explanation: Garnet sand is a dense material with a specific gravity of 4.2 and is used as a constituent in mixed media filter. It is a costlier filter material. 86. The process of decomposition of biodegradable solid waste by earthworms is called a) Composting b) Land fills c) Shredding d) Vermi-composting Answer: d Explanation: The process of decomposition of biodegradable solid waste by earthworms is called Vermicomposting. 87. What is the frequency of cleaning of a slow sand filter? a) 2-3 days b) 2-3 weeks c) 1-3 months d) 1 week Answer: c Explanation: The slow sand filter requires cleaning, depending upon the impurities present in water and normally it is done after 1-3 months. 88. Which type of filter is used in treating swimming pool water? a) Pressure filter b) Dual media filter c) Slow sand filter d) Rapid sand filter Answer: a Explanation: The pressure filter is used for treating swimming pool water. It is also used for clarifying softened water at industrial plants. 89. Which of the following is a biodegradable waste? a) Paper b) Food waste c) Polythene bags d) Synthetic fiber Answer: b Explanation: Polythene bags, synthetic fiber and paper are non-biodegradable wastes whereas food waste is a biodegradable waste. 90. Which water treatment process is done after filtration of water? a) Secondary sedimentation b) Flocculation c) Primary sedimentation d) Disinfection Answer: d Explanation: Disinfection is a process which is done to kill microorganism present in the water after the filtration process. 91. In the lower layers of atmosphere, what range of wavelengths of light is predominant? a) Between 100-300 nm b) Less than 100 nm c) Greater than 300 nm d) All wavelengths are equally present Answer: c Explanation: In the lower layers of atmosphere, light of wavelengths greater than 300nm are present and it is because of this reason, there is generally no ozone formation at the ground level. 92. What is the significance of the ionosphere? a) Regulates weather b) Aviation movements c) High frequency radio transmission d) All of the mentioned Answer: c Explanation: Ionosphere contains ionized atmospheric particles due to solar radiation and is useful in the propagation of radio waves. 93. Which of the following radiations of the sun do greenhouse gases trap? a) Infrared radiations b) UV radiations c) Visible radiations d) All the radiations Answer: a Explanation: Greenhouse gases trap the infrared radiations from the sun and reflect it back to the Earth‟s surface thereby heating up the planet. 94. Below which of the following pH is rain regarded as „acid rain‟? a) 5.6 b) 7.4 c) 2.7 d) 8 Answer: a Explanation: Though the pH of neutral water is 7, rainwater is acidic due to mixing up with atmospheric carbon dioxide and is said to have a 5.6 pH. Hence acid rain has a pH less than 5.6. 95. Which of the following greenhouse gas is contributed by cattle farming? a) Carbon monoxide b) Nitrous oxide c) Methane d) All of the mentioned Answer: c Explanation: Methane is a gas released by the digestive processes of cattle and hence cattle farming also contributes to the greenhouse effect. 96. Organic contaminants are removed from the water by the process of a) Adsorption b) Absorption c) Demineralization d) Water softening Answer: a Explanation: Organic contaminants are removed from the water by the attraction and accumulation of one substance on the surface of another. 97. Which of the following gases are main contributors to acid rain? a) Carbon dioxide and carbon monoxide b) Sulphur dioxide and carbon dioxide c) Sulphur dioxide and nitrogen dioxide d) Sulphur dioxide and nitrous oxide Answer: d Explanation: Sulphur dioxide and nitrogen dioxide have a high tendency to mix with water to form sulphurous/sulphuric acid and nitric acid. 98. Glass containers are generally not preferred for sampling rain water. Why? a) Glass containers are expensive b) Glass containers are not easy to maintain c) Glass containers affect the pH of the rain water d) All of the mentioned Answer: c Explanation: Glass containers can alter the pH of the rain water and hence not suitable to use for sampling rain water. 99. Who discovered the phenomenon of acid rain? a) George Brown b) James T. Stewart c) Robert Angus Smith d) Charles David Answer: c Explanation: The phenomenon of acid rain was discovered by Robert A. Smith during the industrial revolution. 100. What is the pH required for the survival of aquatic animals and plants? a) 7 b) 7.5 c) 6.5 d) 4.8 Answer: d Explanation: Aquatic organisms require a moderately acidic pH of 4.8 and if it goes below this level, it proves to be detrimental to their survival. 101. Which of the following gases is responsible for the yellowing of the Taj Mahal? a) Organic carbon b) Black carbon c) Brown carbon d) All of the mentioned Answer: d Explanation: Organic carbon, black carbon and brown carbon (generated due to biomass combustion) are