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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.
| 551. |
Bharat stage III (BS III) is applicable toA. 13 Mega cities (Delhi and NCR, Lucknow, Sholapur)B. Throughout the countryC. Not applicable in any city of IndiaD. 4 metro cities (Delhi, Mumbai, Kolkata and Chennai) only |
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Answer» Correct Answer - B Bharat stage III (BS III) is applicable to throughout the country |
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| 552. |
Corresponding to the fuel, vehicle engines will also need to be upgraded. Bharat stage II (BS II) is applicable in India inA. 13 Mega cities (Delhi and NCR, Lucknow, Sholapur)B. Throughout the countryC. Not applicable in any city of India.D. Four metro cities (Delhi, Mumbai, Kolkata and Chennai) only |
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Answer» Correct Answer - C Corresponding to the fuel, vehicle engines will also need to be upgraded. Bharat stage II (BS II) is riot applicable in any city of india. |
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| 553. |
Bharat stage TV (BS IV) is applicable toA. 13 Mega cities (Delhi and NCR, Lucknow, Sholapur)B. Throughout the countryC. Not applicable in any city of IndiaD. 4 metro cities (Delhi, Mumbai, Kolkata and Chennai) only |
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Answer» Correct Answer - A Bharat stage IV (BS IV) is applicable to 13 Mega cities (Delhi and NCR, Lucknow, Sholapur). |
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| 554. |
Good ozone and bad ozone is found respectively inA. Troposphere and stratosphereB. Stratosphere and troposphereC. Upper part of atmosphere and lower atmosphereD. Both B and C |
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Answer» Correct Answer - D Bad ozone formed in the lower atmosphere (the troposphere) that harms plants and animals. Good ozone is found in the upper part of the atmosphere (stratosphere) and act as a shield absorbing ultraviolet radiation (IJV) from the SUN |
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| 555. |
Increase in atmospheric temperature due to `CO_(2)` is called :A. Pasteur effectB. Emerson effectC. Blackman effectD. Greenhouse effect |
| Answer» Correct Answer - D | |
| 556. |
Increase in atmospheric temperature due to `CO_(2)` is called :A. Pasteur effectB. Blackman effectC. Emersion effectD. Green-house effect |
| Answer» Correct Answer - D | |
| 557. |
An inexhaustible resoruce isA. Wind powerB. Soil fertilityC. WildlifeD. All the above |
| Answer» Correct Answer - A | |
| 558. |
Loins are found inA. Western GhatsB. Corbett National ParkC. Forests of Madhya PradeshD. Gir forest |
| Answer» Correct Answer - D | |
| 559. |
Mass emission standards, BS II is equivalent toA. BS IllB. BS IVC. Euro IIID. Euro II |
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Answer» Correct Answer - C Mass emission standards, BS II is equivalent to Euro II. |
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| 560. |
By the efforts made by Government, the air quality of Delhi has significantly improved. A substantial fall has been found in Delhi between 1997 and 2005, for theA. `CO_2` levelB. `SO_2` levelC. `NO_2` levelD. Both A and B |
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Answer» Correct Answer - D By the efforts made by Government, the air quality of Delhi has significantly improved. A substantial fall has been found in Delhi between 1997 and 2005, for the `CO_2` and `SO_2` level. |
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| 561. |
Bhopal gas tragedy in 1984 was caused byA. Hydrogen cyanideB. AmmoniaC. 2, 4-Dichlorophenoxy acetic acidD. Methyl isocyanate |
| Answer» Correct Answer - D | |
| 562. |
In 1984, Bhopal gas tragedy was caused due to the leakage ofA. potassium isocyanateB. sodium monoxideC. sodium thiocyanateD. methyl isocyanate |
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Answer» Correct Answer - D Methyl isocyanate gas, used as raw material for synthesising carbonyl, caused Bhopal gas tragedy in 1984. |
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| 563. |
`DDT` isA. a non-degradable pollutantB. an antibioticC. a biodegradable pollutantD. not a pollutant |
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Answer» Correct Answer - A DDT is non-degradable pollutant which accumulates in the tissues. Its concentration is estimated to be 13-31 ppm in body fat of Indians, which has been accumulated in them through biomagnification of DDT through food chain. |
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| 564. |
Which important greenhouse gas other than methane is linerated from agriculture fields?A. `SO_(2)`B. `NO_(x)`C. ArsineD. Ammonia |
| Answer» Correct Answer - B | |
| 565. |
Due to industrialization since 1940 how much per cent of `CO_(2)` is increased in environment?A. `10%`B. `5%`C. `20%`D. `15%` |
| Answer» Correct Answer - A | |
| 566. |
The smallest viable unit which can grow, multiply and form a plant in tissue culture isA. CeromosomeB. NucleusC. CellD. Tissue |
| Answer» Correct Answer - C | |
| 567. |
Ecological backlash (or ecological boomerang) isA. Heat emission due to bomb explosimB. Production of useful ecological effect by a previously useful chemicalC. Formation of secondary pollutant from reaction of primary pollutantsD. Production of adverse ecological effect by a previously useful chemical |
| Answer» Correct Answer - D | |
| 568. |
Ecological backlash (or ecological boomerang) isA. production of adverse ecological effect by a previosly useful chemicalB. production of useful ecological effect by a previosly useful chemicalC. heat emissoion due to bomb explosionD. none of these |
| Answer» Correct Answer - A | |
| 569. |
Minamata disease is due toA. Oil spill in waterB. Arsenic in the atmosphereC. Industrial waste having mercury in waterD. Organic waste in drinking water |
| Answer» Correct Answer - C | |
| 570. |
Spraying of pesticide is an example ofA. Point source water pollutionB. Diffuse water pollutionC. Both (1) and (2)D. Pyrolysis |
| Answer» Correct Answer - B | |
| 571. |
Which one of the following is a renewable source of energy?A. PetroleumB. CoalC. Nuclear fuelD. Trees |
| Answer» Correct Answer - D | |
| 572. |
(A) : The concept of ecological pyramid was developed by Arthur Tansley. (R) : An energy pyramid is always inverted.A. If both (A) and (R) are true but (R) is not the correct explanation of (A).B. If both (A) and (R) are true and (R) is the correct explanation of (A).C. If (A) is true but (R) is false.D. If both (A) and (R) are false. |
| Answer» Correct Answer - D | |
| 573. |
Which disease is not water borne?A. CholeraB. TyphoidC. DysenteryD. Asthma |
| Answer» Correct Answer - D | |
| 574. |
Which one of the following combination is incorrect?A. Rio convention - Air pollutionB. Kyoto protocol - Climate changeC. Montreal protocol - Ozone depletionD. Ramsar convention - Wetland conservation |
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Answer» Correct Answer - A The historic convention on biological diverstiy, the earth summit held in Rio de Janeiro in 1992 called upon all nations to take appropriate measures for sustainable utilisation of its benefits. |
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| 575. |
The polluting strength sewage is usually characterized by its:A. BODB. nitrogen contentC. ozone contentD. eutrophication |
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Answer» Correct Answer - A There will be more microbial activity in the sewage if more dead organic matter is present. More microbial activity will require more oxygen which, we call technically as biological oxygen demand. So the pollution strength of any sewage can be determined by its Biological Oxygen Demand (BOD). |
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| 576. |
The polluting strength sewage is usually characterized by its:A. BODB. Ozone contentC. EutrophicationD. Nitrogen content |
| Answer» Correct Answer - A | |
| 577. |
With the rise of water temperature, dissolved oxygen:A. Remains unchanged when algal bloom occursB. Increases in amountC. Decreases in amountD. Is more available to aquatic organisms. |
| Answer» Correct Answer - C | |
| 578. |
With the rise of water temperature, dissolved oxygen:A. remains unchangedB. increases in amountC. decreases in amountD. is more available to the aquatic organisms |
| Answer» Correct Answer - C | |
| 579. |
Fishes die in water bodies polluted by swage due to :A. PathogensB. Clogging of gills by siltC. Reduction in oxygenD. Four smell. |
| Answer» Correct Answer - C | |
| 580. |
Cause of decline in population of reptiles and birds isA. BioinsecticidesB. BiofertilizersC. DDTD. Both A and B |
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Answer» Correct Answer - D Cause of decline in population of reptile and birds is DDT. |
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| 581. |
The term biomagnification refers to:A. Rapid growth due to excessive intake of nutrientsB. Increase in population sizeC. Decrease in population sizeD. Increase in concentration of non-degradable pollutants as they pass through food chain |
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Answer» Correct Answer - B BiomagnifIcation refers to Increase in concentration of non-degradable pollutants as they pass through food chain. |
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| 582. |
Which is correct?A. Both Azotobacter and Rhizobium fix atmospheric nitrogen in root nodules of plants.B. Cyanobacteria, Anabuena and Nostoc are mobilizers ol phosphates and plant nutrition in soil.C. At. present it is not possible to grow Maize without chemical fertilizers.D. Excessive use of chemical fertilizers may lead to eutrophication of nearby water bodies. |
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Answer» Correct Answer - D Rhizobium fix atmospheric nitrogen in root nodules of plants while Azotobacter is free living. Cyanobacteria, Anabaena and Nosloc free living `N_2`- fixers. At present it is possible to grow Maize without chemical fertilizers. |
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| 583. |
Which of the following is mainly produced by the activity of anaerobic bacteria on sewageA. laughing gasB. proponeC. mustard gasD. marsh gas |
| Answer» Correct Answer - D | |
| 584. |
In a coal-fired power plant, electrostatic precipitators are installed to control the emission ofA. `NO_x`B. COC. SPMD. `SO_2` |
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Answer» Correct Answer - C In coal fired power plants, electrostatic precipitators are fitted to control emission of SPM (suspended particulate matter) |
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| 585. |
Secondary sewage treatment is mainly aA. mechanical processB. chemical processC. biological processD. physical process |
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Answer» Correct Answer - C In secondary or biological treatment of municipal waste, the organic matter is decomposed with the help of microbes. Decomposition of organic matter occurs by one of the three methods-water hyacinth pond, trickling filter method and activated sludge method. After decomposition the treated water is sterilised through chlorination and recycled. |
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| 586. |
Which one causes degradation of RBC ?A. HydrocarbonsB. Sulphur compoundsC. AmmoniaD. Arsenic compound. |
| Answer» Correct Answer - D | |
| 587. |
Secondary sewage treatment is mainly aA. physical processB. mechanical processC. chemical processD. biological process |
| Answer» Correct Answer - D | |
| 588. |
In a coal-fired power plant, electrostatic precipitators are installed to control the emission ofA. `CO`B. `SO_(2)`C. `NO_(8)`D. SPM |
| Answer» Correct Answer - D | |
| 589. |
Thermal plants have installedA. cyclone collectorB. porous filtersC. electrostatic precipitatorsD. adsorbents |
| Answer» Correct Answer - C | |
| 590. |
Secondary sewage treatment is mainly aA. Primary treatementsB. Secondary treatementC. Tertiary treatmentD. All of the above |
| Answer» Correct Answer - B | |
| 591. |
Enzymatic filters are used for removingA. Nitrogen pollutantsB. Chloride pollutantsC. HydrocarbonsD. Lead |
| Answer» Correct Answer - C | |
| 592. |
Ozone present in stratosphere filters outA. UV-AB. UV-BC. UV-CD. Both B and C |
| Answer» Correct Answer - D | |
| 593. |
Photocatalysis of effluents is carriedout with the help ofA. polymeric adsorbentsB. Titanium dioxideC. ResinsD. UV radiations |
| Answer» Correct Answer - B | |
| 594. |
Level of atmospheric `CO_(2)` has increased in 2000 fromA. 280 ppm to 360 ppmB. 250 ppm to 300 ppmC. 300 ppm to 340 ppmD. 330 ppm to 350 ppm |
| Answer» Correct Answer - A | |
| 595. |
Blue-baby syndrome occurs by the pollution ofA. COB. fluroineC. nitrateD. mercury |
| Answer» Correct Answer - C | |
| 596. |
Mark the odd one w.r.t. anthropogenic pollutionA. Particulate matter by volcanoesB. Thermal power plantC. Flour mill dustD. Pesticides |
| Answer» Correct Answer - A | |
| 597. |
Knocks knee disease isA. caused by homonal imbalance and excess of HGB. due to deficiency of tyrosineC. due to excess fluoride concentration in waterD. due to high BOD and high temperature of water by thermal pollution |
| Answer» Correct Answer - C | |
| 598. |
In India, maximum ground water depletion has occurred inA. MumbaiB. DelhiC. PunjabD. Tamil nadu. |
| Answer» Correct Answer - D | |
| 599. |
Livestock population in India isA. Over 500 millionB. 415 millionC. 350 millionD. 292 million |
| Answer» Correct Answer - A | |
| 600. |
Fuelwood demand in India isA. 90 million `m^(3)`B. 150 million `m^(3)`C. 216 million `m^(3)`D. 380 million `m^(3)` |
| Answer» Correct Answer - D | |