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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.
| 1101. |
In the coming years, skin related disorders will be more common due to :A. Water pollutionB. Depletion of ozone layerC. Pollutants in airD. Use of detergents |
| Answer» Correct Answer - B | |
| 1102. |
Country contributed maximum to hole formation in ozone layer isA. U.S.AB. RussiaC. GermanyD. Japan |
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Answer» Correct Answer - A Country contributed maximum to hole formation in ozone layer is U.S.A. |
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| 1103. |
In the coming years, skin related disorders will be more common due to :A. Excessive use of detergentsB. Water pollutionC. Air pollutionD. Depletion of ozone layer |
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Answer» Correct Answer - D In coming years, skin related disorders will become more common due to depetion of ozone layer. |
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| 1104. |
Ozone layer in upper atmosphere (stratosphere) is destroyed by :A. Sulphur dioxideB. Hydrochloric acidC. Photochemical smogD. Chlorofluorocarbon |
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Answer» Correct Answer - D One of the most important Ozone Depleting Substances (ODS) is freon. |
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| 1105. |
The advantage of the presence of ozone layer arround the Earth is to check:A. loss of oxygenB. supply of oxygenC. loss of carbon dioxideD. penetration of UV rays |
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Answer» Correct Answer - D Ozone is a very minor consitutent of the atmosphere but an etremely effective absorber of biologically active solar ultraviolet radiation. |
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| 1106. |
The `CO_(2)` content by volume, in the atmospheric air is aboutA. `0.0314 %`B. `0.34%`C. `3.34%`D. `4%` |
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Answer» Correct Answer - A `CO_(2)` constitutes 0.0314% of the atmosphere. Producers use `CO_(2)` along with energy from sun and make carbon compounds such as glucose during the process of photocynthesis. Consumers use these compounds as energy source. |
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| 1107. |
Fill in the blanks. 1. According to an estimate, almost ...a... per cent forests have been lost in the tropics, compared to ...b... per cent in the temperate region. 2. At the beginning of the twentieth century, forests covered about ...c... per cent of the land of India. By the end of the century, it shrunk to ...d... per cent. 3. National forest Policy (1988) of India has recommended ...e... per cent forest cover for the plains and …of percent for the hills.A. a -1, b -40, c -33, d -18, e-30, f -67B. a -40,b- 1,c-30,d -19.4,e-67,f- 33C. a-1, b 40, c-30, d-19.4, e-33, f- 67D. a-40,b-1,c- 33,d-19.4,e-33,f-67 |
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Answer» Correct Answer - B 1. According to an estimate, almost 40 per cent forests have been lost in the tropics, compared to 1 per cent in the temperate region.2. At the beginning of the twentieth century, forests cove red about 30 per cent of the land of India. By the end of the century, it shrunk to 19.4 per cent.3. National forest Policy (1988) of India has recommended 67 per cent forest cover for the plains and 33 percent for the hills. |
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| 1108. |
In the coming years, skin related disorders will be more common due to :A. pollution of airB. use of detergentsC. water pollutionD. depletion of ozone layer |
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Answer» Correct Answer - D Depletion of the ozone layer is one of the few concerns shared by both the international scientific and political communities. |
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| 1109. |
The concept of Joint Forest Management (JEM) involvesA. conservation of forest and agricultural land by the governmentB. conservation of forests and wildife by the local communititesC. work in close association with the local communities for protecting and managing forestsD. exploitation of beneficial forest products only. |
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Answer» Correct Answer - C Realising the significance of participation by local communities, the Government of India in 1980s has introduced the concept of Joint Forest Management (JFM) so as to work closely with the local communities for protecting and managing forests. In return for their services to the forest, the communities get benefit of various forest products (minor forest products), and thus the forest can be conserved in a sustainable manner. Presently, there are 84632 JFM committees with 17.33 million hectare forest area under them. Some 85.28 lakh families are involved in them all over the country. |
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| 1110. |
Major source of methane in India is :A. Rice fieldsB. Sugarcane plantationC. Wheat fieldsD. Fruit orchards. |
| Answer» Correct Answer - A | |
| 1111. |
Assertion: During the Green Revolution, crop product ion is enhanced. Reason: In the wake of Green Revolution, use of inorganic fertilisers and pesticides has increased manifold.A. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assertion and reason are true but reason is not the correct explanation of the assertionC. If assertion is true but reason is falseD. If both assertion and reason are false. |
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Answer» Correct Answer - A During the Green Revolution, crop production is enhanced because in the wake of Green Revolution, use of inorganic fertilisers and pesticides has increased manifold. |
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| 1112. |
American water plant that has become a troublesome water weed in India isA. Cyperus rotundusB. Eichhornia crassipesC. Trapa latfoliaD. Trapa bispinora |
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Answer» Correct Answer - B American water plant that has become a troublesome water weed in India is Eichhornia crassipes. |
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| 1113. |
Shallow lake rich organic products is calledA. heterotrophicB. eutrophicC. mesotrophicD. oligotrophic |
| Answer» Correct Answer - B | |
| 1114. |
Which pollution causes jaundice ?A. WaterB. AirC. ThermalD. Land |
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Answer» Correct Answer - A Water pollution causes jaundice. |
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| 1115. |
Assertion: In the wake of Green Revolution, pesticides, herbicides and fungicides are being increasingly used. Reason: Chemical fertilisers can be biomagnified in the terrestrial ecosystem and can cause eutrophication in aquatic ecosystems.A. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assertion and reason are true but reason is not the correct explanation of the assertionC. If assertion is true but reason is falseD. If both assertion and reason are false. |
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Answer» Correct Answer - B In the wake of Green Revolution, pesticides, herbicidesnd fungicides are being increasingly used. • Chemical fertilisers can be biomagnified in the terrestrial ecosystem and can cause eutrophication in aquatic ecosystems. |
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| 1116. |
Ramesh Chandra Dagar includes _______ for case study of organic farming.A. Bee-keepingB. Dairy managementC. Water harvestingD. All of these |
| Answer» Correct Answer - D | |
| 1117. |
Minamata and itai-itai are caused by the pollution ofA. Mercury and leadB. Mercury and CadmiumC. Lead and TinD. Lead and Strontium. |
| Answer» Correct Answer - B | |
| 1118. |
DDT has been a major pollutant because itA. Kills aquatic animalsB. Kills pestsC. Destroy many valuable speciesD. Is nondegradable |
| Answer» Correct Answer - D | |
| 1119. |
Cyclone collectors and electrostatic precipitators are meant ofor controllingA. Radioactive pollutionB. Air pollutionC. Noise pollutionD. Water pollution |
| Answer» Correct Answer - B | |
| 1120. |
Eutrophic lakes are highlyA. productiveB. enriched with phosphatesC. Both (a) and (b)D. None of the above |
| Answer» Correct Answer - C | |
| 1121. |
Gas released during bhopal tragedy wasA. methyl isocyanateB. potassium isothiocyanateC. sodium isothiocynateD. ethyl isothiocyanate |
| Answer» Correct Answer - A | |
| 1122. |
Arbor vitae is composed ofA. Grey matterB. White matterC. Neuroglia cellsD. All of above |
| Answer» Correct Answer - B | |
| 1123. |
Corpora striata isA. Roof of lateral ventricleB. Floor of latral ventricleC. Lateral walls of lateral ventricleD. None of these |
| Answer» Correct Answer - B | |
| 1124. |
The major source of methane that causes global warming isA. wheat fields marshesB. Rice fields, cattles and marshesC. Sugarcane plantation and buffaloesD. Fruit orchards |
| Answer» Correct Answer - B | |
| 1125. |
`CO_(2)` is called a green house gas becauseA. it is transparent to sunlight but opaque to heatB. transporent to light & heat radiation & bothC. transparebt to light & heat radiation both to sunlightD. used in green houses to increase plant growth |
| Answer» Correct Answer - A | |
| 1126. |
What are the basic characteristics of a modern landfill site. List any three and also mention the reasons for their use. |
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Answer» Charactristics of modern lnandfill includes (i) Methods to contain leachate such as lining clay or plastic liners. (ii) Compaction and covering of the waste to prevent it from being blow by wind. (iii) Installation of a landfill gas extraction system to extract the gas for use in generation of power. The use of modern landfill sites must be promoted due to the following reasons (i) They stimulate the waste prevention via recycling and recovery of waste. (ii) They create a uniform cost for the disposal of waste which consequntly will prebent the unecessary transport of waste. (iii) They prevent or reduce the negative eftects on the environment, as well as the risks to human health arising from the landfilling of the waste. |
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| 1127. |
Sanitary landfill were adopted as the substitute forA. sewageB. biomagnificationC. eutrophicationD. open-burning dumps |
| Answer» Correct Answer - D | |
| 1128. |
Assertion: In a sanitary landfill wastes are dumped in a depression or trench after compaction and covered with dirt everyday. Reason: There is a danger of seepage of chemicals from these landfills polluting the underground water resourcesA. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assertion and reason are true but reason is not the correct explanation of the assertionC. If assertion is true but reason is falseD. If both assertion and reason are false. |
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Answer» Correct Answer - B In a sanitary landfill wastes are dumped in a depress ion or trench after compaction and covered with dirt every day. There is a danger of seepage of chemicals from these landfills polluting the underground water resources. |
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| 1129. |
In Rabbit sweat glands are present inA. Near the eyesB. The digitsC. The lipsD. Noen of these |
| Answer» Correct Answer - C | |
| 1130. |
Lamina propria is a layer ofA. Reticular connective tissueB. Fibrous connective tissueC. Adipose connective tissueD. Fluid connective tissue |
| Answer» Correct Answer - A | |
| 1131. |
Soil erosian is prevented byA. afforestationB. overgrazingC. removal of weedsD. increasing birds population |
| Answer» Correct Answer - A | |
| 1132. |
Nitrogen oxides produced from the emission of automobiles and power plants are the source of fine air borne particles which lead toA. SoilerosionB. Dry acid depositionC. Industrial smogD. Wet acid deposition |
| Answer» Correct Answer - B | |
| 1133. |
Choose the incorrect statement.A. The Montreal Protocol is associated with the control of emission of ozone depleting substancesB. Methane and carbon dioxide are greenhouse gasesC. Dobson units are used to measure oxygen contentD. Use of incinerators is crucial to disposal of hospital wastes |
| Answer» Correct Answer - C | |
| 1134. |
Choose the incorrect statement.A. Dobson units are used to measure oxygen contentB. Methane and carbon dioxide are greenhouse gasesC. Use of incinerators is crucial to disposal of hospital wastes.D. The Montreal protocol is associated with the control of emission of ozone depleting substances. |
| Answer» Correct Answer - A | |
| 1135. |
The expanded form of DDT isA. dichloro diethyl trichloroethaneB. dichloro diphenyl trichloroethaneC. dichloro dipyrydyl trichloroethaneD. dichloro diphenyl tetrachloroacetate |
| Answer» Correct Answer - B | |
| 1136. |
Which of the following materials takes the longest time for biodegradation ?A. JuteB. PaperC. BoneD. Cotton |
| Answer» Correct Answer - C | |
| 1137. |
Which of the following materials takes the longest time for biodegradation ?A. CottonB. PaperC. BoneD. Jute |
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Answer» Correct Answer - C Bones are made up of proteins (mainly collagen), inorganic minerals (calcium, hydroxyapatite) and organic ground substance. Out of the four options given, bone degradation will take the longest time. Collagen, because of its unique structures in one of the most resistant proteins to degradation. Inorganic ions like `Ca^(2+)`, further strengthen the bones. |
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| 1138. |
The expanded form of DDT isA. dichloro diphenyl trichloroethaneB. dichloro diethyl trichlooroethaneC. dichloro dipyrdyl trichloroethaneD. dichloro diphenyl tetrachloroacetate. |
| Answer» Correct Answer - A | |
| 1139. |
The expanded form of DDT isA. Dichloro Diphenyl TrichloroethaneB. Dichloro Diethyl TrichloroethaneC. Dichloro Dipyrydyl TrichloroethaneD. Dichloro Diphenyl Tetrachloroacetate |
| Answer» Correct Answer - A | |
| 1140. |
Chosse the incorrect statement.A. The Montreal protocol is associated with the control of emission of ozone depleting substances.B. Methane and carbon dioxide are greenhouse gases.C. Dobson units are used to measure oxygen content.D. Use of incinertators is crucial to disposal of hospital wastes. |
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Answer» Correct Answer - C Dobson units (DU) are used to represent the concentration or thickness of ozone `(O_(3))` in our atmosphere. `100 = 1ppb` (parts per billion). Thickness of ozone is more over equators than over poles. |
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| 1141. |
The green scum seen in the freshwater bodies isA. blue green algaeB. red algaeC. green algaeD. both (a) and (c ) |
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Answer» Correct Answer - D The green scum seen in water bodis includes both green algae as well as blue-green algae. The excessive growth of such bloom forming algae is mainly body (eutrophication). Such algal blooms can choke the water body. Green algae and blue-green algae (cyanobacteria) both ar photosynthetic and decrease the dissolved oxygen of water body. This kills much of flora and fauna of that water body. Later on, when microorganisms decompose these algae, further reduction in dissolved oxygen occurs. |
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| 1142. |
Among the following which one causes more indoor chemical pollution ?A. Burning coalB. Burning cooking gasC. Burning mosquito coilD. Room spray |
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Answer» Correct Answer - A Among the given four options, both burning of coal and burning of mosquito coil will cause chemical pollution, but burning of coal will cause more pollution. The main ingredient in mosquito coils is pyrethrum C (a natural extract from the Chrysanthemum flower). At high doses, it is responsible for various respiratory disorders. The coal leads to release for various respiratory disorders. The coa leads to release of a wide array of air pollutants `(CO_(x), SO_(x), NO_(x)`, etc. Among these, CO is very dangerous, it interfer with breathing process. People are generally advised not to sleep with coal burning in the closed room. |
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| 1143. |
Water pollutionA. turbidityB. oxygenationC. `O_(2)` contentD. None of these |
| Answer» Correct Answer - A | |
| 1144. |
The major source of noise pollution, worldwide is due toA. Office equipmentB. Transport systemC. Sugar, textile and paper inaastriesD. Oil refineries and thermal power plants |
| Answer» Correct Answer - B | |
| 1145. |
Which movements occurs due to external stimulus ?A. TropicB. NasticC. TacticD. All the above |
| Answer» Correct Answer - D | |
| 1146. |
Pritoplasmic straeming isA. Thigmonastic movementsB. PhotonastyC. Movement of locomotionD. Movement of curvature |
| Answer» Correct Answer - C | |
| 1147. |
Domestic waste isA. EffluentB. BiodegradableC. NonbiodegradableD. Air pollutant |
| Answer» Correct Answer - B | |
| 1148. |
Cyclone collector is used to minimiseA. redioactive pollutionB. water pollutionC. noise pollutionD. air pollution |
| Answer» Correct Answer - D | |
| 1149. |
Stringent following of laws laid down relation to noise need to be enforced to protect ourselves from noise pollution. These laws are a. Delimitation of horn-free zones around hospitals and schools b. Permissible sound-levels of crackers c. Permissible sound-levels of loudspeakers d. Timing after which loudspeaker cannot be playedA. a, b and dB. b, c and dC. a, b and cD. a, b, c and d |
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Answer» Correct Answer - D Stringent following of laws laid down relation to noise need to be enforced to protect ourselves from noise pollution. These laws are a. Delimitation of horn-free zones around hospitals and schools b. Permissible sound-levels of crackers c. Permissible sound-levels of loudspeakers d. Timing after which loudspeaker cannot be played |
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| 1150. |
Find out incorrect statements in relation to pollutionA. Plastic is nondegradable pollutantB. Water vapours, smoke fumes and dust mixture forms smogC. PAN affects photosynthesisD. Ozone layer forms protective shield to ionosphere. |
| Answer» Correct Answer - D | |