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.
| 1601. |
In land animals blood vascular system hasA. Single circulationB. Venous heartC. Arterial heartD. Arteriovenous heart |
| Answer» Correct Answer - D | |
| 1602. |
Which does not occure in cell membraneA. CholesterolB. PermeaseC. GlycoproteinD. Proline |
| Answer» Correct Answer - D | |
| 1603. |
Fossil lucy belong toA. RamapithecusB. AustralopithecusC. DryopithecusD. Aegyptopithecus |
| Answer» Correct Answer - B | |
| 1604. |
Biodervisity is determinated byA. Number of individuals in an areaB. Species richnesC. EvennessD. Both B and C |
| Answer» Correct Answer - D | |
| 1605. |
A living fossil isA. CoelacanthB. LimulusC. SphenodonD. All the above |
| Answer» Correct Answer - D | |
| 1606. |
Which wading bird is omnivorousA. FlamingoB. King FisherC. Grey HeronD. None the above |
| Answer» Correct Answer - A | |
| 1607. |
Pesticides are considered as hazardous because theyA. Presist in environmentB. Do not enter food chainC. Affect target organism onlyD. Do not kill natural enemy populations . |
| Answer» Correct Answer - A | |
| 1608. |
Depletion of ozone is mainly due toA. `CO_(2)`B. CFCC. `SO_(2)`D. `CH_(4)`. |
| Answer» Correct Answer - B | |
| 1609. |
`CO_(2)` content of atmosphere has increased in the last 150 years fromA. 200 ppm to 300 ppmB. 350 ppm to 450 ppmC. 280 ppm to 370 ppmD. 120 ppm to 280 ppm |
| Answer» Correct Answer - C | |
| 1610. |
Lead concentration of blood is considered alarming atA. 20 `mu g// 100` mlB. 30 `mu g//100` mlC. 4-6 `mu g// 100` mlD. 10 `mu g//100` ml |
| Answer» Correct Answer - B | |
| 1611. |
Lead concentration of blood is considered alarming atA. `4-6 mu`/100 mlB. `10 mug `/100 mlC. `20 mug`/100 mlD. `30 mug`/100 ml |
| Answer» Correct Answer - D | |
| 1612. |
Which of the following is not used for disinfection of drinking water?A. ChlorineB. OzoneC. ChloramineD. Phenyl |
| Answer» Correct Answer - D | |
| 1613. |
Lead concentration in blood is considered alarming if it isA. `20 mu g//100 mL`B. `30 mu g//100 mL`C. `4-6 mu g//10 mL`D. `10 mu g//100 mL` |
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Answer» Correct Answer - B The concentration of lead in blood averages about `25 mu g//100 mL`. Increase to `70 mu g//100 mL` is generally associated with clinical symtoms. Hence, a level of `30 mu g//100 mL` is considered alarming. The Chief sources of Pb to water are the effluents of lead and lead processing industries. |
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| 1614. |
Which of the following is not used fot disinfection of drinking water ?A. PhenylB. ChloramineC. ChlorineD. Ozone |
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Answer» Correct Answer - A Phenyl is not used for disinfection of drinking water as it is a poisonous substance. Water is chlorintaed for getting disinfected. |
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| 1615. |
Recently government of India has allowed mixing of alcohol in petrol.What is amout of alcohol permitted for mixing in petrolA. `2.5%`B. `10-15%`C. `10%`D. `5%` |
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Answer» Correct Answer - D According to Union Petroleum Minister, 5% of alcohol (ethanol ) will be mixed in petrol for meeting energy needs. |
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| 1616. |
Global agreement in specific control strategies to reduce the release of ozone depleting substances was adopted by:A. Rio de Janerio ConferenceB. Montreal ProtocolC. Kyoto ProtocolD. Vienna Convention |
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Answer» Correct Answer - B The Montreal Protocol is a landmark international agreement designed to protect the stratospheric ozone layer. By reducing the release of ozone depleting substances. The treaty was originally signed in 1987 and substantially amended in 1990 and 1992. The Montreal protocol stipulates that the production and consumption of compounds that deplete ozone in the stratosphere-c chlorofluorocarbons (CFCs), halogens, carbon tetrachloride and methyl chloroform- are to be phased out by 200 (2005 for methyl chloroform). |
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| 1617. |
Global agreement in specific control strategies to reduce the release of ozone depleting substances was adopted by:A. Viema conventionB. Rio de Janeiro conferenceC. Kyoto protocolD. Montreal protocol. |
| Answer» Correct Answer - D | |
| 1618. |
Fill in the blanks, according to the Green house effect. 1. Clouds and gases reflect about ...a...of the incoming ..solar radiation and absorb some of it but almost of incoming solar radiation falls on Earth’s surface heating it, while a small proportion.is reflected back . 2. Earth’s surface re-emits heat in the form of ...c... radiation but part of this does not escape into space as atmospheric gases absorb a major fraction of it.A. a—one half , b—one fourth, c—UV radiationB. a—one fourth, b—one half c UV radiationC. a—one half, b—one fourth, c—infrared radiationD. a—one fourth, b—one half, c—infrared radiation |
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Answer» Correct Answer - D 1. Clouds and gases reflect about one-fourth of the incoming solar radiation, and absorb some of it but almost one-half of incoming solar radiation falls on Earth’s surface heating it, while a small proportion is reflected back. 2. Earth’s surface re-emits heat in the form of infrared radiation but part of this does not escape into space as atmospheric gases absorb a major fraction of it. |
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| 1619. |
Assertion: Ecological sanitation is a sustainable system for handling human excreta. Reason: It is a practical and hygienic method of using dry composting toilets.A. If both Assertion and Reason are true and the reason is the correct explanation of the assertion, then mark (1).B. If both Assertion and Reason are true but the reason is not the correct explanation of the assertion, then mark (2).C. If Assertion is true but Reason is false, then mark (3).D. If both Assertion and Reason are false, then mark (4). |
| Answer» Correct Answer - A | |
| 1620. |
A sustainable system for handling human excreta, using dry composting toilets is calledA. Ecological sanitationB. Ecosan toiletsC. Municipal toiletsD. Both A and B |
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Answer» Correct Answer - D A sustainable system for handling human excrcta, using dry composting toilets is called ecological sanltat ion/ecosan toilets. |
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| 1621. |
Assertion: Ecological sanitation is a sustainable system for handling human excreta. Reason: It is a practical and hygienic method of using dry composting toilets.A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).B. If both Assertion & Reason are ture but the reason is not the correct explanation of the assertion, then mark (2).C. If Assertion is true statement but Reason is false, then mark (3).D. If both Assertion and Reason are false statements, then mark (4). |
| Answer» Correct Answer - A | |
| 1622. |
The expensive metals used in catalytic converters of automobiles areA. Cadmium and RhodiumB. Platinum, Palladium and RhodiumC. Lead and CadmiumD. Copper and Cadmium |
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Answer» Correct Answer - B The expensive metals used in catalytic converters of automobiles are platinum, palladium and rhodium. |
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| 1623. |
Catalytic converters are fitted in to automobiles for reducing emission of poisonous gases, having expensive metals namely.A. cadmium and RhodiumB. Platinum, palladium and rhodiumC. Lead and CadmiumD. copper and cadmium |
| Answer» Correct Answer - B | |
| 1624. |
A fine powder of recycled modified plastic that was dev eloped by the company of Ahmed Khan is calledA. BitumenB. PolyblendC. PolyesterD. Asphalt |
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Answer» Correct Answer - B A fine powder of recycled modified plastic that was developed by the company of Ahmed Khan iscalled Polyblend. |
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| 1625. |
$ "Transpiration pull Theory" was proposed by Dixon and Joly . ! Loss of water droplets from hydathodes is called Guttation.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 | |
| 1626. |
When domestic sewage mixes with river waterA. The increased microbial activity releases micronutrients such as ironB. The increased microbial activity uses up dissolved oxygenC. The river water is still suitable for drinking as impurities are only about 0.1 %D. Small animals such as rats will die after drinking river water |
| Answer» Correct Answer - B | |
| 1627. |
When domestic sewage mixes with river waterA. Small animals like rats will die after drinking river waterB. The increased microbial activity releases micronutrients such as ironC. The increased microbial activity uses up dissolved oxygenD. The river water is still suitable for drinking as impurities are only about 0.1% |
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Answer» Correct Answer - C When domestic sewage mixes with river water increased microbial activity uses up dissolved oxygen. |
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| 1628. |
When domestic sewage mixes with river waterA. Small animals like rats will die after drinking river waterB. The increased microbial activity releases micronutrients such as iron.C. The increased microbial activity uses up dissolved oxygenD. The river water is still suitable for drinking as impurities are only about 0.1% |
| Answer» Correct Answer - C | |
| 1629. |
What are the various constituents of domestic sewage? Discuss the effects of sewage discharge on a river. |
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Answer» The domestic waste contains everything that goes down the drain into the sewer of the house. Suspended solids are soil particles (sand and silt), inorganic colloidal particles (e.g., clay) and organic colloidal matter (faecal matter, cloth, paper fibres, eatable waste etc.), dissolved solids (nitrates, phophates etc. and toxic metal ions) and pathogens. Pollutants make water unfit for domestic and industrial use. For details. |
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| 1630. |
The Government of India has introduced a concept to work closely with local communities for protection and management of forests calledA. Jhum cultivationB. Chipko MovementC. Appiko MovementD. Joint Forest Management |
| Answer» Correct Answer - D | |
| 1631. |
Government of India has introduced a concept to work closely with local communities for protection and management of forests calledA. Chipko movementB. Jhum culitivationC. Joint Forest ManagementD. Appiko movement |
| Answer» Correct Answer - C | |
| 1632. |
$ Rudolf Virchow was the first to propose that new cells arise only from the pre-existing cells. ! Dividing cells have a low content of DNA.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 | |
| 1633. |
Who initiated organic farming in Sonipat, Haryana?A. Ramesh DagarB. Amrita DeviC. Ahmed khanD. None of these |
| Answer» Correct Answer - A | |
| 1634. |
The process of restoring a forest that one existed but was removed at some point of time in the past, is calledA. aforestationB. reforestationC. deforestationD. Both (a) and (b) |
| Answer» Correct Answer - B | |
| 1635. |
Movement caused by injury isA. TraumtropismB. RheotopismC. TraumonastyD. Rheonasty |
| Answer» Correct Answer - A | |
| 1636. |
Bakane disease of Rice is due toA. NAAB. 2 - 4DC. IAAD. GA |
| Answer» Correct Answer - D | |
| 1637. |
Pollution indicator plantsA. Are resistant to pollutionB. Can purify the atmosphereC. Are very sensitive to pollutantsD. Can indicate onset of rains. |
| Answer» Correct Answer - C | |
| 1638. |
Photochemical smong always containsA. OzoneB. MethaneC. Carbon monoxidesD. Carbon dioxide |
| Answer» Correct Answer - A | |
| 1639. |
Most hazardous metal pollutant of automobile exhausts is :A. mercuryB. LeadC. CadmiumD. copper. |
| Answer» Correct Answer - B | |
| 1640. |
In which year Air (Prevention and control of Pollution ) Act was amended to include noise as an air pollutant ?A. 1972B. 1981C. 1987D. 1990 |
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Answer» Correct Answer - C This Act came into force in `1981`. |
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| 1641. |
Eutrophication causes reduction inA. dissolved `O_(2)`B. dissolved hydrogenC. dissolved saltD. All of these |
| Answer» Correct Answer - A | |
| 1642. |
The Air (Prevention and Control of Pollution). Act was amended in 1987 to include one of the following as pollutantA. waterB. noiseC. dustD. none of these |
| Answer» Correct Answer - B | |
| 1643. |
Eutrophication causes reduction inA. Dissolved carbon dioxideB. D.OC. Dissolved nitrateD. All the above |
| Answer» Correct Answer - B | |
| 1644. |
Events that take place in eutrophication on given below (a) excessive growth of algae (b) depletion of dissolved oxygen (c ) bacteria feed on dead algae cells (d) aquatic body becomes rich in phosphates The correct order of events cells that occurs here isA. (a), (d) , (c ), (b)B. (d), (a), (c ), (b)C. (a), (b), (d), (c )D. (d), (c ), (b), (a) |
| Answer» Correct Answer - B | |
| 1645. |
Atmosphere of big/metropolitan cities is polluted most byA. Automobile exhaustsB. Pesticide residueC. Household wasteD. Radioactive fallout. |
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Answer» Correct Answer - A Atmosphere of big/metropolitan cities is polluted mostly by automobile exhausts. |
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| 1646. |
Atmosphere of big cities is polluted most bya)Automobile exhaustsb)Radioactive fall outc)Household wasted)Pesticide residueA. automobile exhaustsB. pesticide residueC. household wasteD. radioactive fall-out |
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Answer» Correct Answer - A Automobile exhausts are the largest source of air pollution in big cities. Automobiles releases carbon monoxide (77.2%), hydrocarbons (13.7%) and nitrogen oxide (7.7 %). |
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| 1647. |
Atmosphere of big/metropolitan cities is polluted most byA. Automobile exhaustsB. Pesticide residueC. Household wasteD. Radio-active fall -out. |
| Answer» Correct Answer - A | |
| 1648. |
What is hybrid vehicle technology ? Explain its adventages with a suitable example? |
| Answer» It produces vehicles which can run on dual mode like petrol and CNG. This technology reduces consumption of fossil fuels and produces less environment pollutants. | |
| 1649. |
In which year Air (Prevention and Control of Pollution) Act was amended to include noise as an air pollutant?A. 1972B. 1981C. 1987D. 1990 |
| Answer» Correct Answer - C | |
| 1650. |
A : Nitrate and phosphate discharge in a water body causes eutrophication. R : This increases the inorganic content in water body and hence growth of algal bloomsA. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).B. If both Assertion & Reason are ture but the reason is not the correct explanation of the assertion, then mark (2).C. If Assertion is true statement but Reason is false, then mark (3).D. If both Assertion and Reason are false statements, then mark (4). |
| Answer» Correct Answer - A | |