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.
| 1451. |
Classical smog was first observed inA. TokyoB. New YorkC. SydneyD. London |
| Answer» Correct Answer - D | |
| 1452. |
Sulphurous smog isA. Photochemicals smogB. oxidising smogC. classical smogD. los angeles smog. |
| Answer» Correct Answer - C | |
| 1453. |
Classical smog isA. Dark brown smogB. yellow brown smogC. los Angeles smogD. Smog with secondary pollutants |
| Answer» Correct Answer - A | |
| 1454. |
Substitute of chlorofluorocarbon isA. HydrofluorofluorocarbonsB. HydrochlorofluorocarbonC. FluorocarbonD. Both A and B |
| Answer» Correct Answer - D | |
| 1455. |
Low sulphur diesel has become available in India fromA. First April 1996B. First april 1997C. first january 1997D. first january,1996 |
| Answer» Correct Answer - A | |
| 1456. |
Nitrogen oxides released in the stratosphere causes ozone depletion due toA. catalysing conversion of ozone to oxygenB. binding ozoneC. reacting with ozoneD. All the above |
| Answer» Correct Answer - C | |
| 1457. |
What is reforestation? |
| Answer» Reforestation is the process of restoring a forest that had once existed but was removed at some point of time in the past. Though , it can occur naturally is a deforested area but we can expedite it by planting trees with due consideration to biodiversity that earlier existed in that area. | |
| 1458. |
What are the three major kinds or impurities in domestic wastewater? |
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Answer» The three major kinds of impurites in domestic waste water are (i) Dissolved salts such as nitrates, phosphate, other nutrients, toxic , metal ions and organic compounds. (ii) Biodergradable organic matter. (iii) Pathogenic microorganisms. |
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| 1459. |
$ Leghaemoglobin is a compound of Iron and is present in the root nodules of leguminous plants. ! It acts as an oxygen scavenger and forms a temporary compound by combining with oxygen.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 | |
| 1460. |
Two oxides of nitrogen pollute air….and …. |
| Answer» Correct Answer - Nitrogen monoxide (NO) and nitrogen dioxide `(NO_(2))` | |
| 1461. |
World Summit on Sustainable Development, 2002 was held inA. South AfricaB. BrazilC. ArgentinaD. Sweden. |
| Answer» Correct Answer - A | |
| 1462. |
The World Summit on sustainable development held in 2002 in……….A. South AfricaB. BrazilC. SwdenD. Argentina |
| Answer» Correct Answer - A | |
| 1463. |
Deficiency of fluorine in drinking water causedA. dental cariesB. dental flourosisC. skeletal fluorosisD. goiter |
| Answer» Correct Answer - A | |
| 1464. |
Unleased petrol has been introduced in India with effect fromA. First january,1996B. First april, 1995C. first april,1996D. First january,1997 |
| Answer» Correct Answer - B | |
| 1465. |
Which one is not an advantage of CNG over dieselA. Burns more efficientlyB. It is cheapC. Cannot be siphoned off by thievesD. Cannot be adulterated |
| Answer» Correct Answer - D | |
| 1466. |
Increased asthmatic attacks in certain seasons are related toA. Inhalation of seasonal pollenB. eating of saesonal vegetablesC. low temperatureD. wet and dry environment |
| Answer» Correct Answer - A | |
| 1467. |
`DDT` isA. green house gasB. degradable pollutantC. nondegradable pollutantD. None of the above |
| Answer» Correct Answer - C | |
| 1468. |
Which one of the following dissolves more rapidly in blood haemoglobin than oxygen ?A. OzoneB. Nitrous oxideC. Sulphur dioxideD. Carbon monoxide |
| Answer» Correct Answer - D | |
| 1469. |
Which of the following combines with haemoglobin in blood?A. Carbon dioxideB. carbon monoxideC. oxygenD. methane |
| Answer» Correct Answer - B | |
| 1470. |
A river with an inflow of domestic sewage rich in organic waste may result inA. Increased population of aquatic food web organismsB. An increased production of fish due to biodegradable nutrientsC. Death of fish due to lack of oxygenD. Drying of the river very soon due to algal bloom |
| Answer» Correct Answer - C | |
| 1471. |
A river with an inflow of domestic sewage rich in organic waste may result inA. Death of fish due to lack of oxygenB. Drying of the river very soon due to algal bloomC. Increased population of aquatic food web organismsD. An increased production of fish due to biodegradable nutrients |
| Answer» Correct Answer - A | |
| 1472. |
Domestic waste isA. effluentB. biodegradableC. non-biodergradableD. air pollutant |
| Answer» Correct Answer - B | |
| 1473. |
Discuss briefly the following: (a) Greenhouse effect (b) Catalytic converter (c) Ultraviolet -B. |
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Answer» (b) Catalytic converters are devices that are fitted into automobiles for reducing the emission of genes. These have expensive metals (platinum-palladium and rhodium) as catalysis. As the exhaust passes through the catalytic converters, unburnt hydrocarbons are converted into `CO_(2) " and "H_(2)O` and carbon monoxide and nitric oxide are changed to `CO_(2) " and "N_(2)` respectively. (c) UV-B are short wavelength harmful radiations that penetrate through the ozone hole to strike the earth. On earth, these can effect human beings and other animals by causing. (i) skin cancer, (ii) Blindness and increased incidence of cataract in eyes, and (iii) malfunctioning of the immune system. |
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| 1474. |
The main cause of pollution in metrocities isA. burning of fossil fuelsB. water plantsC. domestic productsD. None of the above |
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Answer» Correct Answer - A Main causes of pollution in metro cities is burning of fossil fuels. It releases `CO_(2),CO,SO_(2),H_(2)O and H_(2)SO_(4)`. All these form a strong air pollutants. |
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| 1475. |
What are the 5 main types of pollution? |
| Answer» Water, air, soil, radioactive and noise pollution. | |
| 1476. |
Name the major surface water pollutant from farm run-off and bathroom water. |
| Answer» Correct Answer - Phosphorus | |
| 1477. |
The `CO_(2)` content by volume, in the atmospheric air is aboutA. 3.6E-5B. 0.00036C. 0.0036D. 0.036 |
| Answer» Correct Answer - B | |
| 1478. |
Burning of fossil fuels is the main source of which of the following pollutants?A. Nitrogen oxideB. nitric acidC. nitrous oxideD. sulphur dioxide |
| Answer» Correct Answer - D | |
| 1479. |
The natural ageing of the fresh water lake is calledA. biomagnificationB. eutrophicationC. BODD. green house effect |
| Answer» Correct Answer - B | |
| 1480. |
The natural ageing of a lake may span thousands of years, depending on theA. ClimateB. Size of the lakeC. Some other factorsD. All of the above |
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Answer» Correct Answer - D The natural ageing of a lake may span thousands of years, depending on the climate, size of the lake and some other factors. |
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| 1481. |
$ Flower is a modified shoot which helps in sexual reproduction. ! Monoparental reproduction is also called vegetative reproduction.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 | |
| 1482. |
$ Self pollination in bud condition of a flower is called cleistogamy. ! Cleistogamy is usually accompanied by geocarpy.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 - A | |
| 1483. |
$ The zyhote developes into a multicellular organisms. ! Each cell is totipotent.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 - A | |
| 1484. |
$ Pollination by insects is called self pollination. ! Cross pollination is between two genetically similar flowers.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 - D | |
| 1485. |
What are the 2 types of sources of water pollution? |
| Answer» Point source that brings pollutions through regular channels, and diffusion source that absorbs pollutants scattered on surface of soil. | |
| 1486. |
Maximum permissible limit of noise as per "Noise Pollution Rules 2000 of India" is:A. 60 deciblesB. 70 decibelsC. 80 decibelsD. 100 decibels. |
| Answer» Correct Answer - C | |
| 1487. |
Maximum permissible limit of noise as per "Noise Pollution Rules 2000 of India" is:A. 75 dBB. 65 dBC. 55dBD. 45dB |
| Answer» Correct Answer - A | |
| 1488. |
What are point sources of pollution? |
| Answer» Where effluents discharge occurs at specific site. | |
| 1489. |
Maximum permissible limit of noise as per "Noise Pollution Rules 2000 of India" is:A. 75 dBB. 65 dBC. 55 dBD. 50 dB |
| Answer» Correct Answer - A | |
| 1490. |
What do you mean by biological magnification? |
| Answer» Increased concentration of non-degradable chemicals (e.g.DDT) along the food chain. | |
| 1491. |
At what intervals jhuming can be harmful to forests? |
| Answer» Correct Answer - Less than 10 years. | |
| 1492. |
Which is the sure indicator of air pollution? |
| Answer» Death of hardy organisms, the lichens. | |
| 1493. |
A pollutants that causes irritation in eyes, throat and noseA. COB. `SO_(2)`C. `CH_(4)`D. Chlorofluorocarbons. |
| Answer» Correct Answer - B | |
| 1494. |
Why does `NO_(2)` irritate eyes and nose? |
| Answer» `NO_(2)` dissolves in water to form nitric acid that cause irritation. | |
| 1495. |
What does the mean of snow blindness?A. Inflammation of corneaB. Infection of corneaC. Blindness due to genetic reasonD. Colour blindness |
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Answer» Correct Answer - A In human eye cornea absorbs UV-B radiation and a higb dose of UV-B causes: 1.Inflammation of the cornea (snow-blindness), 2. Cataract, 3. Permanently damage to cornea. |
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| 1496. |
In human eye, cornea absorb UV-B radiation, and a high dose of UV-B causesA. Inflammation of corneaB. CataractC. Permanently damage to corneaD. All of the above |
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Answer» Correct Answer - D In human eye, cornea absorb UV-B radiation, and a high dose of UV-B causes inflammation of cornea, cataract and permanently damage to cornea. |
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| 1497. |
Which of the following is true for eutrophicated water body?A. High mineral contentB. High oxygen contentC. Rich species diversityD. Low organic content |
| Answer» Correct Answer - A | |
| 1498. |
The term biomagnification refers to:A. Rapid growth growth to excessive intake of nutrientsB. Increase in population sizeC. Decrease in population sizeD. increases in concentration of nondegradable pollutants as they pass through food chain. |
| Answer» Correct Answer - D | |
| 1499. |
The term biomagnification refers to:A. increase in concentration of non-degradable pollutant through a food chainB. growth of organisms due to food consumptionC. decreases in population sizeD. increase in population size |
| Answer» Correct Answer - A | |
| 1500. |
The term biomagnification refers to:A. increase in concentration of non-degradable pollutant through a food chain.B. growth of organisms due to food consumptionC. decrease in population size.D. increase in population size. |
| Answer» Correct Answer - A | |