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.
| 301. |
Eutrophication in lakes is the direct result ofA. a diminished supply of nitrates and phosphatesB. industrial poisonsC. nutrient enrichment such as nitrate and phosphate runoffs from the landD. an increase in predators |
| Answer» Correct Answer - C | |
| 302. |
Eutrophication of often seen in:A. MountainsB. DesertsC. Fresh water lakesD. Ocean |
| Answer» Correct Answer - C | |
| 303. |
dB is a standard abbreviation used for the quantitaive expression of :A. A particular pollutantB. The dominant Bacillus in a cultureC. A certain pesticideD. The density of bacteria in a medium |
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Answer» Correct Answer - A dB is a standard abbreviation used for the quantitative expression of a particular pollutant. |
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| 304. |
Match the items in column I and column II and choose the correct option. `{:("Column I", "Column II"),("UV", (i) "Biomagnificatron"),("Biodegradable organic matter", (ii)"Eutrophication"),("DDT",(iii) "Snow blindness"),("Phosphates",(iv)"BOD"):}` The correct match is :A. `{:(A,B,C,D),(2,1,4,3):}`B. `{:(A,B,C,D),(3,2,4,1):}`C. `{:(A,B,C,D),(3,4,1,2):}`D. `{:(A,B,C,D),(3,1,4,2):}` |
| Answer» `{:(,"Column -I",,"Column-II",),(A.,UV "ray",1.,"Snow blindness (effect cornea)",),(B.,"Biodegradable organic matter",2.,"BOD",),(C.,DDT,3.,"Magnification",),(D.,"Phosphate",4.,"Eutrophication",):}` | |
| 305. |
Match the items given in column I with items (one or more) given in column it. `{:("(i) Biodegradable pollutants", "(a) D.D.T."), ("(ii) Non-biodegradable pollutants", "(b) PAN"), ("(iii) Secondary pollutants", "(c) Low temperature"), ("(iv) Photochemical smog", "(d) Organic wastes (Sewage)"),("(v) Classical smog", "(d) Organic wastes (Sewage)"), (, "(e) High temperature"),(, "(f) Ozone"),(, "(g) Cadmium"):}` |
| Answer» (i) d, (ii) a, g (iii) b, f (iv) e (v) c | |
| 306. |
dB is a standard abbreviation used for the quantitaive expression of :A. A particular pollutantsB. The dominant Bacillus in a cultureC. A certain pesticideD. The density of bacteria in a medium. |
| Answer» Correct Answer - A | |
| 307. |
Match the items in column I and column II and choose the correct option. `{:("Column I", "Column II"),("UV", (i) "Biomagnificatron"),("Biodegradable organic matter", (ii)"Eutrophication"),("DDT",(iii) "Snow blindness"),("Phosphates",(iv)"BOD"):}` The correct match is :A. A ii, B I, C iv, D iiiB. A iii, B ii, C iv, D iC. A iii, B iv, C i, D iiD. A iii, B i, C iv, D i |
| Answer» Correct Answer - C | |
| 308. |
Which pollutant causes the following effects? 1. Causes dryness to throat 2. Causes damage to neuron 3. Causes headache, blurred visionA. HydrocarbonsB. Hydrogen sulphideC. Hydrogen flourideD. Hydrogen cyanide. |
| Answer» Correct Answer - D | |
| 309. |
Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancersA. AmmoniaB. MethaneC. Nitrous oxideD. Ozone |
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Answer» Correct Answer - D Depletion of ozone gas in the atmosphere can lead to an increased incidence of skin cancers. |
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| 310. |
Match the items in column I and column II and choose the correct option. `{:("Column I", "Column II"),("UV", (i) "Biomagnificatron"),("Biodegradable organic matter", (ii)"Eutrophication"),("DDT",(iii) "Snow blindness"),("Phosphates",(iv)"BOD"):}` The correct match is :A. `{:("A","B","C","D"),(2,1,4,3):}`B. `{:("A","B","C","D"),(3,2,4,1):}`C. `{:("A","B","C","D"),(3,4,1,2):}`D. `{:("A","B","C","D"),(3,1,4,2):}` |
| Answer» Correct Answer - C | |
| 311. |
A system of rotating crops with legume or grass pasture to improve soil structrue and fertility is calledA. Strip farmingB. Shifting agricultureC. Ley farmingD. Contour farming |
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Answer» Correct Answer - C A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called ley farming. |
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| 312. |
Ultraviolet radiations from sunlight causes a reaction that produces:A. `O_(3)`B. `SO_(2)`C. COD. `CH_(4)` |
| Answer» Correct Answer - A | |
| 313. |
Joint Forest Management Concept was introduced in In ia duringA. 1980sB. 1990sC. 1960sD. 1970s |
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Answer» Correct Answer - A Joint Forest Management Concept was introduced in India during 1980s. |
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| 314. |
Joint Forest Management Concept was introduced in India duringA. 1990sB. 1960sC. 1970sD. 1980s |
| Answer» Correct Answer - D | |
| 315. |
Biological mangification occurs in case ofA. Organochlorine insecticidesB. Organophosphate pesticidesC. Plants and animals in ecosystem with abundant resourcesD. Photography. |
| Answer» Correct Answer - A | |
| 316. |
Common components of photochemical smog may not contain:A. PANB. OzoneC. Nitrogen dioxideD. `SO_(2)` |
| Answer» Correct Answer - D | |
| 317. |
Ultraviolet radiations from sunlight causes a reaction that produces:A. fluoridesB. carbon monoxideC. sulphur dioxideD. ozone |
| Answer» Correct Answer - D | |
| 318. |
Ultraviolet radiations from sunlight causes a reaction that produces:A. OzoneB. `SO_(2)`C. COD. Fluorides |
| Answer» Correct Answer - A | |
| 319. |
Melanin protects fromA. X raysB. Infra red raysC. Visible raysD. UV rays |
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Answer» Correct Answer - D Melanin protects us from UV rays. |
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| 320. |
The depletion of ozone layer is due to:A. Oxides of nitrogenB. Oxides of carbonC. Oxides of sulphurD. None of the above |
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Answer» Correct Answer - A Depletion of ozone layer is due to oxides of nitrogen. |
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| 321. |
A lake which is rich in organic waste may result inA. Increased population of aquatic organisms due to mineralsB. drying of the lake due to algal bloomC. increased fish population due to lots of nutrientsD. mortality of fish due to lack of oxygen |
| Answer» Correct Answer - D | |
| 322. |
Joint Forest Management Concept was introduced in India duringA. 1970sB. 1980sC. 1990sD. 1960s |
| Answer» Correct Answer - B | |
| 323. |
Biological mangification occurs in case ofA. Organochiorine insecticidesB. Organophosphate pesticidesC. Plants and animals in ecosystem with abundant resourcesD. Photography |
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Answer» Correct Answer - A Biological magnification occurs in case of organo chlorine insecticides (like DDT). |
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| 324. |
Ultraviolet radiations from sunlight causes a reaction that produces:A. `O_3`B. SOC. COD. `CH_4` |
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Answer» Correct Answer - A In stratosphere ozone gas is continuously formed by the action of ultra violet rays on molecular oxygen and also degraded into molecular oxygen. |
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| 325. |
Two components of automobile exhaust that combine in the presence of sunlight to produce toxic substances such as photochemical smog areA. Peroxyacetyl nitrate and ozoneB. Acetylene and ethyleneC. Chlorine and hydrogen chlorideD. Methane and chlorofluorocarbons |
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Answer» Correct Answer - A wo components of automobile exhaust that combine in the presence of sunlight to produce toxic substances such as photochemical smog are peroxyaetyi nitrate and ozone. `NO_2 to NO+[O]` `O_2 +[O] overset"UV"to O_3`(ozone) `NO+NO_3` + Hydrocarbon `to NO_2 + PAN` |
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| 326. |
"Ozone hole" refers to:A. Hole in ozone layersB. Reduction in thickness of ozone layer in stratos phereC. Reduction of thickness of ozone in troposphereD. Increase concentration of ozone |
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Answer» Correct Answer - B Ozone hole refers to reduction in thickness of ozone layer in stratosphere. |
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| 327. |
Biochemical Oxygen Demand (BOD) may not be a good index for pollution in water bodies receiving effluents fromA. domestic sewageB. dairy industryC. petroleum industryD. sugar industry |
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Answer» Correct Answer - C Because petroleum effluents contain waste which is non-biodegradable. |
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| 328. |
Biochemical oxygen demand (BOD) in a river waterA. Remains unchanged when algal bloom occursB. Increases when sewage gets mixed up with river waterC. Has no relationship with concentration of oxygen in waterD. Gives a measure of Salmonella in water |
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Answer» Correct Answer - B Biochemical oxygen demand (BOD) in a river water increases when sewage gets mixed up with river water. |
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| 329. |
Ozone hole result isA. rainfailureB. cataractC. increase in skin cancerD. All of these |
| Answer» Correct Answer - D | |
| 330. |
Result of ozone hole isA. Greenhouse effectB. Global warmingC. Acid rainD. UV radiations reach the earth |
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Answer» Correct Answer - D Result of ozone hole is UV radiations reach the earth. |
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| 331. |
Automobile exhaust gas that causes major respiratory problem isA. COB. `CH_(4)`C. `NO_(2)`D. Chlorine. |
| Answer» Correct Answer - A | |
| 332. |
Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents fromA. domestic sewageB. dairy industryC. petroleum industryD. sugar industry |
| Answer» Correct Answer - C | |
| 333. |
Result of ozone hole isA. Green house effectB. Global warmingC. Acid rainD. UV radiations reach the earth. |
| Answer» Correct Answer - D | |
| 334. |
What is the intensity of sound during normal conversation?A. 10-20 dbB. 30-60 dbC. 70-90 dbD. 120-150 db |
| Answer» Correct Answer - B | |
| 335. |
A lake receiving nutrients would beA. OligotrophicB. EutrophicC. SinkD. Rich in fossils |
| Answer» Correct Answer - B | |
| 336. |
Intenstiy of sound in normal conversationA. 10 -20 dBB. 30-60 dBC. 70-90 dBD. 120-150 dB |
| Answer» Correct Answer - B | |
| 337. |
Exposure to noise pollution causesA. Increases heat beatB. Constriction of blood vesselsC. Dilation of pupilD. All the above |
| Answer» Correct Answer - D | |
| 338. |
A location with luxuriant growth of lichens on the trees indicates that theA. trees are very healtyB. trees are heavily infestedC. location is highly pollutedD. location is not polluted |
| Answer» Correct Answer - D | |
| 339. |
Acid rain is caused byA. `SO_(2)` and `SO_(3)`B. `SO_(2)` and `CO`C. `NH_(3)` and `CO`D. `SO_(2)` and `NH_(3)` |
| Answer» Correct Answer - A | |
| 340. |
Lichens are senstive toA. Noise pollutionB. Air pollutionC. Water pollutionD. Nuclear pollution |
| Answer» Correct Answer - B | |
| 341. |
Green house effect is due toA. X-raysB. UV raysC. Green raysD. Infra-red rays |
| Answer» Correct Answer - D | |
| 342. |
Acid rain is secondary effect ofA. Sound pollutionB. Air pollutionC. soil pollutionD. Water pollution |
| Answer» Correct Answer - C | |
| 343. |
Which is not an effect of acidic rain in a pondA. Increased fungal growthB. Decreased insect populationC. Increased growth of green algaeD. `NO_(3) and SO_(4)` saturation. |
| Answer» Correct Answer - C | |
| 344. |
Which one of the following is not correct with regard to the harmful effects of particulate matter of the size 2.5 micro meters or less?A. It can cause respiratory problems.B. It can directly enter into our circulatory system.C. It can cause inflammation and damage to the lungsD. It can be inhaled into the lungs. |
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Answer» Correct Answer - B According to CPCB (Ceniral Pollution Control Board) particulate size 2.5 micrometer or less in diameter (PM 2.5) are responsible for causing the greatest harm to human health. When these fine particulates can be inhaled deep into lungs then these can cause: I. Breathing and respiratory symptoms 2. Irritation, 3. Inflammation, 4. Damage to lungs and 5. Premature deaths |
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| 345. |
List any two adverse effects of particulate matter on human health. |
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Answer» The fine particulate (Pmof size `mum` or less) can problems cause (i) Breathing and resiratory (ii) Irritation (iii)Inflammations (iv) Damage to the lungs and premature death |
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| 346. |
_____ is highly hazardous to animal health but on plants, this gas does not seem to show adverse effect.A. COB. `CO_(2)`C. `SO_(2)`D. `NO_(2)` |
| Answer» Correct Answer - A | |
| 347. |
Which is more hazardous to human health ?A. PyrethrumB. DDTC. RotenoneD. Humulin. |
| Answer» Correct Answer - B | |
| 348. |
$ Protonema is found in the life cycle of Liverworts. ! Liverworts have multicellular rhizoids.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 - c | |
| 349. |
$ Agamospermy is the process of Asexual reproduction. ! Asexual reproduction occurs only in Algae.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 - C | |
| 350. |
$ Asexual reproduction is also called Apomixis. ! Apogamy shortens the life cycle of a plant.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 | |