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				This section includes 1185 Mcqs, each offering curated multiple-choice questions to sharpen your UPSC IAS Exam knowledge and support exam preparation. Choose a topic below to get started.
| 201. | 
                                    An industry is consistently polluting air due to its hazardous gas emission. The product has high export value and the industry provides employment to hundreds of workers. What action is required by the pollution control authority first? | 
                            
| A. | Order immediate shutdown | 
| B. | Allow production with heavy penalty | 
| C. | Distribute free mask to nearby area | 
| D. | Appoint expert committee for solution to reduce emission | 
| Answer» B. Allow production with heavy penalty | |
| 202. | 
                                    In which state is Ranthambore National Park located? | 
                            
| A. | Madhya Pradesh | 
| B. | Maharashtra | 
| C. | Uttar Pradesh | 
| D. | Rajasthan | 
| Answer» E. | |
| 203. | 
                                    According to the Wildlife (Protection) Act, 1972, which of the following animals cannot be hunted by any person except under some provisions provided by law?1. Gharial2. Indian wild ass3. Wild buffaloSelect the correct answer using the code given below : | 
                            
| A. | 1 only | 
| B. | 2 and 3 only | 
| C. | 1 and 3 only | 
| D. | 1, 2 and 3 | 
| Answer» E. | |
| 204. | 
                                    Identify the incorrect pair from among the following pairs of states and the wildlife sanctuaries therein | 
                            
| A. | Madhya Pradesh - Sundraban | 
| B. | Odisha - Similipal | 
| C. | Rajashtan - Ranthambor | 
| D. | Uttar Pradesh - Dudhwa | 
| Answer» B. Odisha - Similipal | |
| 205. | 
                                    A well / pond, with all the natural animals and plants, remaining in a balanced state is an example of: | 
                            
| A. | Population | 
| B. | Biosphere | 
| C. | Ecosystem | 
| D. | Community | 
| Answer» D. Community | |
| 206. | 
                                    In which year was Central Zoo Authority of India established as a statutory body under the Ministry of Environment and Forest by the Government of India? | 
                            
| A. | 1991 | 
| B. | 1989 | 
| C. | 1992 | 
| D. | 1990 | 
| Answer» D. 1990 | |
| 207. | 
                                    It is possible to produce algae-based biofuels, but what is/are the likely limitation(s) of developing countries in promoting this industry?1. Production of algae-based biofuels is possible in seas only and not on continents.2. Setting up and engineering the algae-based biofuels production requires high level of expertise/technology until the construction is completed.3. Economically viable production necessitates the setting up of large scale facilities which may raise ecological and social concerns.Select the correct answer using the code given below: | 
                            
| A. | 1 and 2 only | 
| B. | 2 and 3 only | 
| C. | 3 only | 
| D. | 1, 2 and 3 | 
| Answer» C. 3 only | |
| 208. | 
                                    Bonn convention is related to - | 
                            
| A. | Migratory species | 
| B. | Chemical weapons | 
| C. | Pollution | 
| D. | Conservation of soil | 
| Answer» B. Chemical weapons | |
| 209. | 
                                    Acid rain is caused by release of _____ and ______ into the air.A. Carbon dioxide and carbon monoxideB. Sulphur dioxide and nitrogen oxidesC. Oxygen and water vapourD. Nitrous oxide and ozone | 
                            
| A. | C | 
| B. | D | 
| C. | B | 
| D. | A | 
| Answer» D. A | |
| 210. | 
                                    All the interacting organisms in an area together with the non-living constituents of the environment form an _______. | 
                            
| A. | Ecology | 
| B. | Hotspot | 
| C. | Ecosystem | 
| D. | System | 
| Answer» D. System | |
| 211. | 
                                    Match List - I with List - II and select the correct answer using the codes given below the lists: List – I (National Parks) List – II (States) A. Indravati 1. Jharkhand B. Mollem 2. Haryana C. Kalesar 3. Goa D. Betla 4. Chhattisgarh | 
                            
| A. | 4, B) 3, C) 2, D) 1 | 
| B. | 4, B) 2, C) 3, D) 1 | 
| C. | 4, B) 1, C) 3, D) 2 | 
| D. | 3, B) 4, C) 2, D) 1 | 
| Answer» B. 4, B) 2, C) 3, D) 1 | |
| 212. | 
                                    Centre for Environment Education is located at: | 
                            
| A. | New Delhi | 
| B. | Dehradun | 
| C. | Ahmedabad | 
| D. | Hyderabad | 
| Answer» D. Hyderabad | |
| 213. | 
                                    One of the following processes is not a step involved in the water cycle operating in nature: | 
                            
| A. | Evaporation | 
| B. | Transpiration | 
| C. | Precipitation | 
| D. | Photosynthesis | 
| Answer» E. | |
| 214. | 
                                    In which of the following Ecosystem benthic zone is found? | 
                            
| A. | Tundra Ecosystem | 
| B. | Forest ecosystem | 
| C. | Water ecosystem | 
| D. | Desert ecosystem | 
| Answer» D. Desert ecosystem | |
| 215. | 
                                    Match the following;National ParkAnimalKanhaRhinocerosKazirangaTigerGirLion | 
                            
| A. | 1-c, 2-b, 3-a | 
| B. | 1-b, 2-a, 3-c | 
| C. | 1-b, 2-c, 3-a | 
| D. | 1-a, 2-b, 3-c | 
| Answer» C. 1-b, 2-c, 3-a | |
| 216. | 
                                    Achanakmar-Amarkantak Biosphere Reserve is located in the following states: | 
                            
| A. | Sikkim and Manipur | 
| B. | Madhya Pradesh and Chhattisgarh | 
| C. | Assam and Mizoram | 
| D. | Uttarakhand and Uttar Pradesh | 
| Answer» C. Assam and Mizoram | |
| 217. | 
                                    Choose the correct match | 
                            
| A. | Corbett - Madhya Pradesh | 
| B. | Darra - Rajasthan | 
| C. | Perambakulam - Karnataka | 
| D. | Bandipur - Tamil Nadu | 
| Answer» C. Perambakulam - Karnataka | |
| 218. | 
                                    Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason/reasons are this attributable?1. The anaerobic conditions associated with rice cultivation cause the emission of methane.2. When nitrogen-based fertilizers are used, nitrous oxide is emitted from the cultivated soil.Which of the statements given above is/are correct? | 
                            
| A. | 1 only | 
| B. | 2 only | 
| C. | Both 1 and 2 | 
| D. | Neither 1 nor 2 | 
| Answer» D. Neither 1 nor 2 | |
| 219. | 
                                    In which of the following states is the Kanha Kisli Reserve located? | 
                            
| A. | Chhattisgarh | 
| B. | Madhya Pradesh | 
| C. | Telangana | 
| D. | Uttar Pradesh | 
| Answer» C. Telangana | |
| 220. | 
                                    Match the following:A) Bandipur National Parki) NagalandB) Gir National Parkii) KarnatakaC) Mahavir Wild Life Sanctuaryiii) GoaD) Intaki National Parkiv) Gujurat | 
                            
| A. | A-i, B-ii, C-iii, D-iv | 
| B. | A-iii, B-i, C-iv, D-ii | 
| C. | A-ii, B-iv, C-iii, D-i | 
| D. | A-iv, B-ii, C-i, D-iii | 
| Answer» D. A-iv, B-ii, C-i, D-iii | |
| 221. | 
                                    How many Biosphere Reserves have been set up in India as per 2017? | 
                            
| A. | 20 | 
| B. | 18 | 
| C. | 7 | 
| D. | 10 | 
| Answer» C. 7 | |
| 222. | 
                                    In India, The Coffee Act was enacted in: | 
                            
| A. | 1942 | 
| B. | 1947 | 
| C. | 1956 | 
| D. | 1980 | 
| Answer» B. 1947 | |
| 223. | 
                                    A species of dolphin is found in the freshwater of the Ganges and Brahmaputra rivers, locally called _______. | 
                            
| A. | Damini | 
| B. | Olive ridley | 
| C. | Susu | 
| D. | Sundari | 
| Answer» D. Sundari | |
| 224. | 
                                    _________ affect(s) the rate of humus formation of soil. | 
                            
| A. | Flora & Fauna | 
| B. | Time | 
| C. | Temperature | 
| D. | Parent rock | 
| Answer» B. Time | |
| 225. | 
                                    Due to improper disposal of used computers, or their parts, which of the following are released into the environment? | 
                            
| A. | Beryllium and cadmium | 
| B. | Chromium and Mercury | 
| C. | Lead | 
| D. | All of the above | 
| Answer» E. | |
| 226. | 
                                    Match the following:Column – I (Biosphere Reserves)Column – II (State)(a) Nilgiri(i) Uttaranchal(b) Nandadevi(ii) Arunachal Pradesh(c) Nokrek(iii) Tamil Nadu(d) Namdapha(iv) Meghalaya | 
                            
| A. | (a) – (iii), (b) – (i), (c – (ii), (d) – (iv) | 
| B. | (a) – (iii), (b) – (i), (c – (iv), (d) – (ii) | 
| C. | (a) – (i), (b) – (iii), (c – (iv), (d) – (ii) | 
| D. | (a) – (ii), (b) – (iv), (c – (i), (d) – (iii) | 
| Answer» C. (a) – (i), (b) – (iii), (c – (iv), (d) – (ii) | |
| 227. | 
                                    Bio-remediation is a technology which is being extensively utilized in controlling | 
                            
| A. | global warming | 
| B. | melting of glaciers | 
| C. | ozone depletion | 
| D. | heavy metal pollutions | 
| Answer» E. | |
| 228. | 
                                    Nepenthese Khasiana is | 
                            
| A. | Primary producer & Primary consumer | 
| B. | Secondary Producer and Secondary consumer | 
| C. | Primary carnivore and Primary producer | 
| D. | Secondary carnivore and secondary producer | 
| Answer» D. Secondary carnivore and secondary producer | |
| 229. | 
                                    How CNG is a cleaner fuel?I. It produces oxides of Sulphur and Nitrogen in very small amounts.II. It makes environment less polluted.III. It emits less greenhouse gases. | 
                            
| A. | Only I and II | 
| B. | Only II and III | 
| C. | Only I and III | 
| D. | All I, II and III | 
| Answer» E. | |
| 230. | 
                                    In which year, the Sultanpur National Park of Haryana was upgraded to the status of National Park ? | 
                            
| A. | 1992 | 
| B. | 1995 | 
| C. | 1991 | 
| D. | 1994 | 
| Answer» D. 1994 | |
| 231. | 
                                    Nitrogen fixation is done by: | 
                            
| A. | Lightening | 
| B. | Fixing Bacteria | 
| C. | Fertilizer | 
| D. | All of these | 
| Answer» E. | |
| 232. | 
                                    Consider the following kinds of organisms:1. Bat2. Bee3. BirdWhich of the above is/are pollinating agent/agents? | 
                            
| A. | 1 and 2 only | 
| B. | 2 only | 
| C. | 1 and 3 only | 
| D. | 1, 2 and 3 | 
| Answer» E. | |
| 233. | 
                                    Mission of Ramsar Convention is to conserve ______. | 
                            
| A. | Wetland | 
| B. | Rivers | 
| C. | Oceans | 
| D. | Deserts | 
| Answer» B. Rivers | |
| 234. | 
                                    In which state is Vedanthangal Bird Sanctuary located ? | 
                            
| A. | Kerala | 
| B. | Rajasthan | 
| C. | Tamil Nadu | 
| D. | Jharkhand | 
| Answer» D. Jharkhand | |
| 235. | 
                                    Consider the following statements:1. Coal ash contains arsenic, lead and mercury.2. Coal-fired power plants release sulphur dioxide and oxides of nitrogen into the environment.3. High ash content is observed in Indian coal.Which of the statements given above is/are correct? | 
                            
| A. | 1 only | 
| B. | 2 and 3 only | 
| C. | 3 only | 
| D. | 1, 2 and 3 | 
| Answer» E. | |
| 236. | 
                                    Energy conservation is very important today because | 
                            
| A. | Sources of conventional energy are fast depleting | 
| B. | Electrical energy has become more expensive | 
| C. | Electrical energy consumption is increasing | 
| D. | None of the above | 
| Answer» B. Electrical energy has become more expensive | |
| 237. | 
                                    As of October 2019, what is the total number of wildlife sanctuaries in India? | 
                            
| A. | 564 | 
| B. | 547 | 
| C. | 543 | 
| D. | 551 | 
| Answer» E. | |
| 238. | 
                                    High Biological Oxygen Demand (BOD) indicates | 
                            
| A. | High level of Microbial Pollution | 
| B. | Low level of Microbial Pollution | 
| C. | Absence of Microbial Pollution | 
| D. | None of the above | 
| Answer» B. Low level of Microbial Pollution | |
| 239. | 
                                    If in any water Body, there is high BOD value then it is generally _____. | 
                            
| A. | Very clean | 
| B. | Very polluted | 
| C. | Highly productive | 
| D. | Highly unproductive | 
| Answer» C. Highly productive | |
| 240. | 
                                    In April 2016, the National Green Tribunal suspended the environmental clearance given to the proposed hydropower project in Arunachal Pradesh to save the ______. | 
                            
| A. | Great Hornbills | 
| B. | Gayals | 
| C. | Medicinal Plants | 
| D. | Black-necked Cranes | 
| Answer» E. | |
| 241. | 
                                    Cartajena protocol is related to | 
                            
| A. | Biosafety agreement | 
| B. | Pollution | 
| C. | Ozone depletion | 
| D. | Climate change | 
| Answer» B. Pollution | |
| 242. | 
                                    Ghughva is the main site of - | 
                            
| A. | Fossil National Park | 
| B. | Madhav National Park | 
| C. | Van Vihar National Park | 
| D. | Satpura National Park | 
| Answer» B. Madhav National Park | |
| 243. | 
                                    ‘Eco mark’ is given to the Indian products that are ______. | 
                            
| A. | Pure and unadulterated | 
| B. | Rich in proteins | 
| C. | Environment-friendly | 
| D. | Economically viable | 
| Answer» D. Economically viable | |
| 244. | 
                                    'NEERI' is located at | 
                            
| A. | Nagpur | 
| B. | Mumbai | 
| C. | Chennai | 
| D. | Bengaluru | 
| Answer» B. Mumbai | |
| 245. | 
                                    Consider the following protected areas:1. Bandipur2. Bhitarkanika3. Manas4. SunderbansWhich of the above are declared Tiger Reserves? | 
                            
| A. | 1 and 2 only | 
| B. | 1, 3 and 4 only | 
| C. | 2, 3 and 4 only | 
| D. | 1, 2, 3 and 4 | 
| Answer» C. 2, 3 and 4 only | |
| 246. | 
                                    In India, the use of carbofuran, methyl parathion, phorte and triazophos is viewed with apprehension. These chemicals are used as | 
                            
| A. | pesticides in agriculture | 
| B. | preservatives in processed foods | 
| C. | fruit-ripening agents | 
| D. | moisturising agents in cosmetics | 
| Answer» B. preservatives in processed foods | |
| 247. | 
                                    In which state is the Kanha National Park situated? | 
                            
| A. | Madhya Pradesh | 
| B. | Haryana | 
| C. | Karnataka | 
| D. | Manipur | 
| Answer» B. Haryana | |
| 248. | 
                                    A boy boarded a train on 30th June 2019 at Madgaon for Nagarcoil. The train departed at 09:45 hours from Madgaon and reached Nagarcoil at 07:15 hours on the next day. If the distance covered by the train during this time interval is 1140 km, the average speed of the train was | 
                            
| A. | 53 km/h | 
| B. | 54.5 km/h | 
| C. | 57 km/h | 
| D. | 51.5 km/h | 
| Answer» B. 54.5 km/h | |
| 249. | 
                                    Arrange the following Tiger Reserves of India from North to South:1. Dudhwa2. Panna3. Pench4. IndravatiSelect the correct answer using the code given below. | 
                            
| A. | 4, 3, 2, 1 | 
| B. | 2, 1, 4, 3 | 
| C. | 1, 2, 3, 4 | 
| D. | 1, 3, 2, 4 | 
| Answer» D. 1, 3, 2, 4 | |
| 250. | 
                                    In the context of Air Pollution, SPM refers to:- | 
                            
| A. | Solid Particle Matter | 
| B. | Smoke Pollution Measure | 
| C. | Suspended Polluting Matter | 
| D. | Suspended Particulate Matter | 
| Answer» E. | |