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.
| 201. |
The UN conference of Parties on climate change in the year 2012 was held at:A. WarsawB. DurbanC. DohaD. Lima |
| Answer» Correct Answer - C | |
| 202. |
Which one of the following is not a renewable, exaustible natural resource?A. waterB. wildlifeC. soil fertilityD. minerals |
| Answer» Correct Answer - D | |
| 203. |
Biological oxygen demand (BOD) is a measure ofA. Industrial wastes poured into water bodiesB. Extent to which water is polluted with organic compoundsC. Amount of carbon monoxide inseparably combined with hemoglobinD. Amount of oxygen needed by green plants during night |
| Answer» Correct Answer - B | |
| 204. |
An inexhaustible resource isA. wind energyB. solar energyC. hydrothermal energyD. tidal energy |
| Answer» Correct Answer - B | |
| 205. |
Water is a resourceA. Non-degradable non-maintainableB. Degradable maintainableC. RenewableD. Non-renewable |
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Answer» Correct Answer - B Water is a degradable maintainable resource. |
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| 206. |
Petroleum resource isA. RenewableB. Non-renewableC. Synthetic and biodegradableD. Infinite and unconventional |
| Answer» Correct Answer - B | |
| 207. |
Concentration of green houses gases is increasing due toA. DeforestationB. Increased use of refrigeratorsC. Increased combustion of coal and petroleumD. All of the above |
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Answer» Correct Answer - D Concentration of greenhouse gases is increasing due to deforestation, increased use of refrigerators and increased combustion of coal and petroleum. |
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| 208. |
Peeling of ozone umbrella, which protects us from UV rays, is caused by:A. CFCsB. PANC. `CO_(2)`D. coal burning |
| Answer» Correct Answer - A | |
| 209. |
Peeling of ozone umbrella, which protects us from UV rays, is caused by:A. PANB. `CO_(2)`C. CFCs and `N_(2)O`D. Coal burning |
| Answer» Correct Answer - C | |
| 210. |
Exposure of UV radiations causesA. Damage to eye sightB. SunburnC. Skin cancerD. All the above |
| Answer» Correct Answer - D | |
| 211. |
Some times secondary pollutants like Ozone, PAN (Peroxy acyl nitrate), `HNO_(3), H_(2)SO_(4)` formed from primary pollutants are moer toxic than primary pollutants. This phenomenon of increased toxicity in pollutants is callexA. BiomagnificationB. EutrophicationC. SynergismD. Green house effect |
| Answer» Correct Answer - C | |
| 212. |
Highest DDT deposition shall occur inA. PhytoplanktonB. Sea Gull/BirdsC. CrabD. Eel |
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Answer» Correct Answer - B Highest DDT deposition shall occur in sea gull/birds/ top level consumer, |
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| 213. |
Drained sewage has biological oxygen demand `(BOD)`:A. More than that of waterB. Less than that of waterC. equal to that of waterD. None of the above |
| Answer» Correct Answer - A | |
| 214. |
Which is correct about statements X and Y statement X. DDT shows biological magnification Statement Y : UV radiations causes ozone depletion .A. X and Y both correct, Y is proper explanation of XB. X and Y both correct, Y is not proper explanation of XC. X is correct, Y is not correctD. X is not correct, Y is correct. |
| Answer» Correct Answer - C | |
| 215. |
UV radiations in the stratosphere are absorbed byA. OxygenB. ozoneC. sulphur dioxideD. Argon. |
| Answer» Correct Answer - B | |
| 216. |
CO is more toxic than `CO_(2)` because it `:`A. it effects the revous systemB. it damages lungsC. it reduce the oxygen carrying capactiy of haemoglobinD. it forms acid with water |
| Answer» Correct Answer - C | |
| 217. |
UV radiations bring aboutA. Skin cancerB. Mouth cancerC. Lung cancerD. Liver cancer |
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Answer» Correct Answer - A UV radiations bring about skin cancer. |
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| 218. |
Exposure of UV radiations causesA. Formation of thyamine dimersB. Addition of base pairsC. Deletion of base pairsD. Methylation of bases. |
| Answer» Correct Answer - A | |
| 219. |
B.O.D. is connected withA. Organic matterB. MicrobesC. Mocrobes and organic matterD. None of the above |
| Answer» Correct Answer - C | |
| 220. |
UV radiations bring aboutA. skin cancersB. Mouth cancerC. Lung cancerD. Liver cancer |
| Answer» Correct Answer - A | |
| 221. |
Taj mahal is threatened by pollution fromA. chlorineB. sulphur dioxideC. hydrogenD. oxygen |
| Answer» Correct Answer - B | |
| 222. |
Which usually causes fibrosis in lungs ?A. LeadB. AsbestoosC. CFCD. DDT |
| Answer» Correct Answer - B | |
| 223. |
Okazaki fragments give rise toA. Master strandB. Sense strandC. Lagging strandD. Leading strand |
| Answer» Correct Answer - C | |
| 224. |
Smallest segment of genetic material affected by mutation isA. ReconB. CistronC. MutonD. Exon |
| Answer» Correct Answer - C | |
| 225. |
C-value paradox isA. Haploid DNA contentB. Diploid DNA contentC. Variable DNA contentD. Smell amount of RNA as compared to DNA |
| Answer» Correct Answer - A | |
| 226. |
The frequency of mutation in a species can be increased by the use ofA. X-raysB. UV-raysC. Nitrous acidD. All the above |
| Answer» Correct Answer - D | |
| 227. |
All nonsence codons have first baseA. AdenineB. CytosineC. UracilD. Guanine |
| Answer» Correct Answer - C | |
| 228. |
In eukaryotes, mRNA is synthesised with the aid ofA. RNA polymerase 3B. RNA polymerase 2C. RNA polymerase 1D. Reverse transcriptase |
| Answer» Correct Answer - B | |
| 229. |
In lac operon, lactose acts areA. InducerB. Co-inducerC. RepressorD. Co-repressor |
| Answer» Correct Answer - A | |
| 230. |
The first mammalian clone 'Dolly' was created by :A. Gregor mendalB. Ian WilmutC. Robert BriggsD. Thomas King |
| Answer» Correct Answer - B | |
| 231. |
What is incineration? |
| Answer» It is controlled combustion of solid wastes inside-chambers at temperature of `850^(@)C - 1000^(@)C`. | |
| 232. |
What is polyblend? |
| Answer» It is a fine powder of recycled modified plastics. | |
| 233. |
Select the incorret matchA. Biodegradable pollutant : Domestic sewageB. Non-degrdable pollutant : DDTC. Secondary pollutant : `SO_(2)`D. Quantitative pollutant : Nitrogen oxides |
| Answer» Correct Answer - C | |
| 234. |
Select the incorret matchA. Incinerator : Aerobic burning at `900-1200^(@)C`B. Pyrolysis : Aerobic burning at `1650^(@)C`C. Sanitary landfills : Solid wasteD. Polyblend : Recycled modified plastic |
| Answer» Correct Answer - B | |
| 235. |
Biodergradable pollutant isA. plasticB. sewageC. asbestosD. All of these |
| Answer» Correct Answer - B | |
| 236. |
Noise was recognised as air pollutant through amendment ofA. Environment (Protection) actB. Air (Prevention and Control of Pollution) ae:C. Noise (Control and Pollution) actD. All of the abvoe |
| Answer» Correct Answer - B | |
| 237. |
Pollution caused by persistent pesticides is relatively more dangerous to which type of organisms?A. HerbivoresB. ProducesC. First level carnivoresD. Top carnivores. |
| Answer» Correct Answer - D | |
| 238. |
Photochemical reaction of nitrogen oxides with unsaturated hydrocarbons producesA. methyl isocyanateB. phosgeneC. benzypyreneD. peroxy-acyl nitrates |
| Answer» Correct Answer - D | |
| 239. |
A persistent insecticide isA. OrganophosphatesB. carbamatesC. ThiocarbamatesD. Chlorinated hydrocarbons. |
| Answer» Correct Answer - D | |
| 240. |
Photochemical reaction of nitrogen oxides with unsaturated hydrocarbons producesA. methyl isocyanateB. phosgeneC. BenzpyreneD. peroxy-acyl nitrates. |
| Answer» Correct Answer - D | |
| 241. |
B.O.D is related toA. detergentsB. putrescibilityC. inorganic pollutantsD. organic pollutants. |
| Answer» Correct Answer - D | |
| 242. |
Electrostatic precipitators are employed to remove particulate pollutants of the size ofA. `5-20 mum `B. `20 -50 mum`C. `50 mum` and largerD. `0.5-5.0 mum`. |
| Answer» Correct Answer - A | |
| 243. |
Gravity settling tanks/porous filters are used to remove particles larger thanA. `2 mum `B. `50 mum`C. `20 mum`D. `10 mum` |
| Answer» Correct Answer - B | |
| 244. |
Photocatalysis is useful in breakdown ofA. Acids and alkaliesB. Chemicals containing heavy metalsC. Toxic chemicalsD. All the above |
| Answer» Correct Answer - C | |
| 245. |
Chlorination of treated waste water is required forA. Killing all microbesB. Removing suspended materialsC. Complete breakdown of organic matterD. All the above |
| Answer» Correct Answer - A | |
| 246. |
Bag filters are used for removal of pollutants fromA. Exhaust emissionsB. Effluent waterC. sewage waterD. Both B and C |
| Answer» Correct Answer - A | |
| 247. |
Excess nitrate present in drinking water, vegetables and fruits shall result inA. methaemoglobinaemiaB. Mottling of techC. minamata diseaseD. Itai-itai. |
| Answer» Correct Answer - A | |
| 248. |
Radiation is a health hazard because it occursA. PneumoniaB. LeukaemiaC. HemophiliaD. Anaemia |
| Answer» Correct Answer - B | |
| 249. |
Zygote of Capsella bursa-pastoris undergoesA. Longitudinal divisionB. Equal tranverse divisonC. Unequal transverse divisionD. Oblique division |
| Answer» Correct Answer - C | |
| 250. |
Match the items given in Column-I with those in Column II and select the correct option given below : `{:("Column I","Column II"),((a) "Eutrophication",(i)"UV-B radiation"),((B) "Sanitary landfill",(ii)"Deforestation"),((c)"Snow blindness",(iii)"Nutrient enrichment"),((d)"Jhum cultivation",(iv) "Waste disposal"):}`A. `{:(""a,b,c,d),(""i,ii,iv,iii):}`B. `{:("a",b,c,d),("iii","iv","i","ii"):}`C. `{:("a",b,c,d),("i","iii","iv","ii"):}`D. `{:("a",b,c,d),("ii","i","iii","iv"):}` |
| Answer» Correct Answer - B | |