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MCQs on Environmental Issues- 18

1. Which of the following material is not easily broken down?

(A) Cellulose
(B) Hemicellulose
(C) Chitin
(D) Amino acids



2. Tectonic control in landscape evolution is manifested by

(A) Tilted river terraces
(B) Alluvial forms
(C) Increased boulder proportions in the river belt
(D) River meandering



3. Difference between mineral resource and reserve is

(A) Reserve implies high degree of economic viability
(B) Resource implies high degree of geological knowledge
(C) Reserve implies high degree of economic viability and high degree of geological knowledge
(D) Resource implies high degree of economic viability and high degree of geological
knowledge



4. Characteristic difference between two polar Ice Caps is

(A) Arctic Ice Cap is on land
(B) Antarctic Ice Cap is on land
(C) Both are on land but Antarctic Ice Cap is thicker
(D) Both are on sea but Arctic Ice Cap is thicker



5. Laterite represents

(A) Regolith soil
(B) Glacial soil
(C) Black cotton soil
(D) Red soil



6. In a whole-rock chemical analysis the dividing criterion between major and trace element on weight percent basis is

(A) 1 %
(B) 0.1 %
(C) 0.01 %
(D) 0.001 %



7. The mineral, most resistant to chemical weathering is

(A) Olivine
(B) Quartz
(C) K-feldspar
(D) Biotite



8. Assertion (A): Phosphorus cycle is not an exogenic elemental cycle.
Reason (R): Phosphorus cycle does not have a gaseous component.

Choose correct answer:
(A) Both (A) and (R) are true and (R) is the correct explanation of (A).
(B) Both (A) and (R) are true, but (R) is not correct explanation of (A).
(C) (A) is true, but (R) is false.
(D) (A) is false, but (R) is true.



9. The El Nino disappears in March and re-appears in

(A) May
(B) August
(C) October
(D) December



10. Bio-oil can be obtained from lignocellulose by

(A) Combustion
(B) Fast pyrolysis
(C) Gasification
(D) Transesterification




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MCQs on Environmental Issues- 21

1. Under anaerobic condition denitrifying Pseudomonas changes,

(A) Nitrate to Nitrite
(B) Nitrate to ammonia
(C) Nitrate to molecular nitrogen 
(D) Nitrite to Nitrate



2. The Phenomenon of having higher number of species in Eco tone is called

(A) Dominance effect
(B) Edge effect
(C) Abundance
(D) Frequency



3. When an atmosphere has an isothermal profile, it is

(A) very stable
(B) slightly stable
(C) unstable
(D) very unstable (turbulent)



4. The wavelength range of UV-C radiation is

(A) 320 – 400 nm
(B) 280 – 320 nm
(C) 100 – 1500 nm
(D) 240 – 280 nm



5. Lightening in the atmosphere produces

(A) NO
(B) CO
(C) CO2
(D) NH3


6. Which one of the following can be estimated by Flame Photometer?

(A) Sodium and Potassium
(B) Cadmium and Cobalt
(C) Chlorine and Bromine
(D) Mercury and Arsenic



7. The contribution of CO2 towards global warming has been estimated to be about

(A) 57 – 60%
(B) 60 – 75%
(C) 80 – 85%
(D) 45 – 55%



8. The principal components of photochemical smog in urban areas are

(A) SO2 and NO2
(B) SPM and CO
(C) SPM and NO2
(D) Hydrocarbons and Ozone



9. An earthquake is rated as ‘major’ if its magnitude in Richter Scale is in the range of

(A) 4.0 – 4.9
(B) 7.0 – 7.9
(C) 6.0 – 6.9
(D) 5.0 – 5.9



10. What is the proportion of the frequency of occurrence of La Nina compared to El Nino?

(A) Half
(B) One-third
(C) Twice
(D) Two-third


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MCQs on Environmental Issues- 20

1. Which is the correct sequence for impact assessment process in EIA?

(A) Description of Environment → Identification of impacts → Prediction of impacts → Evaluation of impacts → Identification of mitigation needs.
(B) Identification of impacts → Prediction of impacts → Evaluation of impacts →Identification of mitigation needs.
(C) Identification of impacts → Description of Environment → Prediction of impacts → Evaluation of impacts → Identification of mitigation needs.
(D) Prediction of impacts → Identification of impacts → Description of environment → Evaluation of impacts → Identification of mitigation needs.



2. Identify the most dominant pollutant in terms of its concentration levels in urban atmosphere.

(A) Oxides of nitrogen
(B) Oxides of sulphur
(C) Particulate matter
(D) Carbon monoxide



3. The main constituents of photochemical smog are

(A) Oxides of sulphur and CO
(B) Oxides of sulphur and hydrocarbons
(C) Oxides of nitrogen and CO
(D) Oxides of nitrogen, hydrocarbons and ozone



4. In alkaline soils, which of the following is not present in soluble state?

(A) Phosphorous
(B) Calcium
(C) Nitrates
(D) Potassium


5. The air borne fraction of carbon is

(A) ~ 0.72
(B) ~ 0.62
(C) ~ 0.46
(D) ~ 0.38



6. Identify the correct sequence in increasing order of total CO2 emissions from various countries at present.

(A) Britain < India < China < USA
(B) India < Britain < China < USA
(C) Britain < USA < India < China
(D) Britain < India < USA < China



7. Arsenic compounds cause

(A) Dwarfism
(B) Dermatitis
(C) Thyrotoxicosis
(D) Wilson’s disease



8. Which of the following will lead to reduction in greenhouse gases in atmosphere?

(A) Increased chemical weathering of rocks.
(B) Volcanic eruption
(C) Lowering of mean sea level
(D) An increase in melting of glacial ice



9. Aerobic bacteria is most active in

(A) Moist and saturated soil
(B) Moist and non-saturated soil
(C) Alluvial soil
(D) Permafrost



10. Andisols are formed by

(A) Biological activity
(B) Erosion by wind
(C) Erosion by waves
(D) Volcanoes


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MCQs on Environmental Issues- 17

1. Which of the following is not a part of Geographic Information System (GIS)?

(A) Projection
(B) Overlay
(C) Reclassification
(D) Measuring distance and connectivity



2. The soil type which is good for agriculture is

(A) Podozols
(B) Latosols
(C) Serpent soil
(D) Solonachak



3. The settling of discreet, non-flocculating particle in a dilute suspension is known as

(A) Class-I sedimentation
(B) Class-II sedimentation
(C) Class-III sedimentation
(D) Compression



4. Which one of the following is the single most important reactive intermediate species in atmospheric chemical processes?

(A) OH.
(B) O2.–
(C) ROO.
(D) OH


5. Removal of top fertile soil by water is called

(A) Leaching
(B) Siltation
(C) Weathering of soil
(D) Soil erosion



6. The rate of settling of air-borne particles in the atmosphere varies with their aerodynamic diameter (d) as

(A) α d
(B) α d2
(C) α d3
(D) α d½



7. The smokestack plumes exhibit ‘coning’ behaviour when

(A) Stable atmospheric conditions exist
(B) Atmosphere is unstable
(C) The height of the stack is below the inversion layer
(D) Inversion exists right from the ground surface above



8. Photodissociation of NO2 occurs in the presence of photons of wavelength,

(A) < 0.39 μm
(B) 0.5 – 0.6 μm
(C) 0.6 – 0.65 μm
(D) 0.65 – 0.7 μm



9. Peroxyacetyl Nitrate (PAN) is formed by oxidation of

(i) Hydrocarbons
(ii) Isoprene
(iii) Terpene
(iv) Arsenic

Choose the correct answer from the codes:

Codes:
(A) (i) and (iv)
(B) (ii) and (iv)
(C) (iii) and (iv)
(D) (i), (ii) and (iii)



10. Chaparral, Maquis, Encinous, Melleseab are important areas of

(A) Tropical deciduous woodland
(B) Temperate evergreen woodland
(C) Tropical evergreen woodland 
(D) Temperate deciduous woodland


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MCQs on Environmental Issues- 16

1. The band labelled as UV-C which is lethal to micro-organisms is

(A) mm 0.29 – 0.32
(B) mm 0.2 – 0.29
(C) mm 0.17 – 0.2
(D) mm 0.07 – 0.21



2. Which of the following species in the atmosphere is called atmospheric detergent?

(A) Chlorine radical
(B) Hydroxyl radical
(C) Methyl radical
(D) Ozone radical



3. The POH of a 0.001 M solution of HCl is

(A) 12
(B) 10
(C) 11
(D) 13



4. Assertion (A): Solar photovoltaic cells are expensive.
Reason (R): Solar photovoltaic cells are fabricated from crystalline silicon and operate only at 10-12% efficiency.
Identify the correct answer:

Codes:
(A) Both (A) and (R) are true and (R) is the correct explanation of (A).
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A).
(C) (A) is true but (R) is false.
(D) (A) is false but (R) is true.


5. Which one of the following techniques can be used for determining the level of cadmium in soil?

(A) UV – Visible spectrophotometer
(B) Atomic Absorption Spectrophotometer
(C) XRD
(D) IR spectrometer


6. For noise control in automobiles, the exhaust muffler attenuates sound by

(A) Absorption
(B) Destructive interference
(C) Reducing velocity of hot gases
(D) Absorption and destructive interference



7. Which one of the following is a peroxyl radical?

(A) OH0
(B) R0
(C) RO0
(D) ROO0


8. The sequence of fossil fuels in the order of higher to lower heating value is as follows:

(A) Coal, Petroleum, Natural Gas, Hydrogen.
(B) Hydrogen, Natural Gas, Petroleum, Coal.
(C) Hydrogen, Coal, Natural Gas, Petroleum.
(D) Natural Gas, Petroleum, Coal, Hydrogen.



9. Two sounds of 80 dB and 85 Db superimpose at a location. What is the resultant sound at that location?

(A) ~ 82 dB
(B) ~ 87 dB
(C) ~ 91 dB
(D) ~ 165 dB



10. The coefficient of performance of a wind turbine for maximum power output is 

(A) 13/18
(B) 5/8
(C) 16/27
(D) 11/17


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MCQs on Environmental Issues- 14

1. Among total dissolved matter in marine water, chlorine accounts for

(A) 30%
(B) 55%
(C) 12%
(D) 6%



2. Pulmonary oedema is caused by

(A) Carbon monoxide
(B) Sulphur dioxide
(C) Nitrous oxide
(D) Methane


3. Which one of the following makes blood toxic, after combining with haemoglobin?

(A) CO2
(B) CO
(C) SO2
(D) CH4



4. Respiratory electron transport chain can be inhibited by

(A) ADP
(B) Phosphate
(C) H2S
(D) CO2


5. Assertion (A): Oil slick in the ocean causes mass scale death of fish.
Reason (R): The gills of fish get clogged.

Point out the correct one of the following:


(A) Both (A) and (R) are true with (R) being the correct explanation.
(B) Both (A) and (R) are true but (R) is not the correct explanation.
(C) (A) is true, but (R) is wrong.
(D) Both (A) and (R) are wrong.




6. Match the rules mentioned in Column – I with year of enforcement mentioned in Column – II.


Column – I                                                                                     Column – II
a. Hazardous Wastes (Management and Handling) Rules               1. 2000
b. Biomedical Solid Wastes (Management and Handling) Rules.     2. 1978
c. Municipal Solid Wastes (Management and Handling) Rules        3. 1989
d. The Water (Prevention and Control of Pollution) Cess Rules       4. 1998

Choose the correct code:


      a        b         c        d
(A) 3        4         1        2
(B) 4        1         2        3
(C) 2        4         3        1
(D) 1        3         4        2


7. Average composition of biodegradable waste in Municipal Solid Waste (MSW) of India is

(A) 30 – 35%
(B) 40 – 45%
(C) 55 – 65%
(D) 60 – 70%



8. The treatment method recommended for the human anatomical waste generated from hospitals is

(A) Chemical disinfection
(B) Autoclaving
(C) Incineration
(D) All the above


9. Match the waste class mentioned in Column – I with Color Code of the Collection Container mentioned in Column – II.

        Column – I                              Column – II
a. Human Anatomical Waste           1. Blue
b. Waste Scrap                                2. Green
c. Discarded glass ware                  3. Red
d. Disposable plastics                      4. White

Choose the correct code:


      a       b       c       d
(A) 2       3       1       4
(B) 4       2       3       1
(C) 1       2       3       4
(D) 3       1       4       2


10. Which of the following is true when frequency of occurrence of risk is remote but possible?

(A) Risk is acceptable.
(B) Risk reduction measures should be implemented.
(C) Risk is unacceptable.
(D) Both (A) and (B) are true.




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