UGC NET 2013: June, Paper II, Environmental Sciences
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PAPER-II
ENVIRONMENTAL SCIENCES
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J-89-13 1 P.T.O.
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ENVIRONMENTAL SCIENCES
Paper – II
Note : This paper contains fifty (50) objective type questions, each question carrying two (2)
marks. All questions are compulsory.
1. Assertion (A) : Every country 4. If soil in a given area is wetted and
should integrate the principles allowed to drain till percolation is
of sustainable development into stopped, the amount of water thus
its policies and programmes. retained is called
Reason (R) : Environmental (A) Storage capacity
resources are a Nation’s (B) Capillary capacity
wealth.
(C) Hygroscopic capacity
Choose the correct code from the
following : (D) Field capacity
(A) Both (A) and (R) are true and
(R) is the correct explanation of 5. Quantity of 5M HCl required for
(A). preparing 1000 ml of 0.1 M HCl is,
(B) Both (A) and (R) are true, but (A) 20 ml
(R) is not the correct (B) 2 ml
explanation of (A).
(C) 200 ml
(C) (A) is true, but (R) is false.
(D) 100 ml
(D) (A) is false, but (R) is true.
6. The method which can be used for
2. Wind rose represents statistical
the softening of water having high
distribution of
calcium, high magnesium-carbonate
(A) Wind velocity in vector form hardness and some noncarbonate
(B) Wind speeds in scalar form hardness
(C) Wind speeds in π diagram (A) single-stage line process.
(D) Wind speeds in the form of (B) excess lime process.
histograms (C) single stage lime-soda ash
process.
3. In the redox reaction given below, (D) excess lime-soda ash process.
which one of the substrates in
forward reaction is oxidized ?
7. Spotted deer, Asiatic wild ass, Black
2Fe3+ + H2 → 2Fe2+ + 2H+
buck are,
(A) Fe3+ (A) Endangered species
(B) H2 (B) Vulnerable species
(C) H+ (C) Threatened species
(D) Fe2+ (D) Key species
Paper-II 2 J-89-13
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8. Specific mortality of members of a 13. The following exogenous and
population is expressed by endogenous factors are the cause of
(A) Life table extinction of animal species :
(B) Survivorship curve I. Ecological niche
II. Decrease in reproductive
(C) Rate of mortality
potency.
(D) Rate of fecundity
III. Lesser adaptability to
fluctuating environment.
9. Which group of vertebrate comprises Choose the correct answer from the
maximum number of endangered codes given below :
species ? Codes :
(A) Fish (A) I only
(B) Amphibia (B) II only
(C) Reptiles (C) I and II
(D) Birds (D) I, II and III
10. Under anaerobic condition 14. Positive mass balance of glaciers has
denitrifying Pseudomonas changes, been recently reported from
(A) Nitrate to molecular nitrogen (A) Eastern Himalayas
(B) Nepal Himalayas
(B) Nitrate to ammonia
(C) Western Himalayas
(C) Nitrate to Nitrite
(D) Karakoram
(D) Nitrite to Nitrate
15. Which of the following will lead to
11. The Phenomenon of having higher reduction in greenhouse gases in
number of species in ecotone is atmosphere ?
called (A) Increased chemical weathering
(A) Dominance effect of rocks.
(B) Edge effect (B) Volcanic eruption
(C) Abundance (C) Lowering of mean sea level
(D) Frequency (D) An increase in melting of
glacial ice
12. Which specific common feature
16. The unconsolidated material with
is not found in zooplankton and
highest permeability is
rabbit ?
(A) Landslide with clayey
(A) Both are animals
component
(B) Both are primary consumers (B) Altered volcanic ash
(C) Both are carnivores (C) Well sorted alluvial sand
(D) Both are herbivores (D) Buried mud flows
J-89-13 3 Paper-II
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17. Which of the following component 23. Arsenic compounds cause
of cryosphere has the longest life ? (A) Dwarfism
(A) Sea ice (B) Dermatitis
(B) Icebergs (C) Thyrotoxicosis
(C) Valley glaciers (D) Wilson’s disease
(D) Ice sheets 24. What is the pE value in an acid mine
water sample having
18. Aerobic bacteria is most active in [Fe2+] = 7.03 × 10–3 M and
(A) Moist and saturated soil [Fe3+] = 3.71 × 10–4 M
(B) Moist and non-saturated soil (A) 10.5 (B) 12.5
(C) Alluvial soil (C) 14.5 (D) 18.5
(D) Permafrost 25. Assertion (A) : Chronic exposure to
ozone is a possible contributor
19. Andisols are formed by to forest decline.
(A) Biological activity Reason (R) : Surface ozone is a
(B) Erosion by wind green house gas.
(C) Erosion by waves Identify the correct code :
(D) Volcanoes (A) Both (A) and (R) are true and
(R) is the correct explanation of
20. In case of photovoltaic cell, the (A).
maximum theoretical efficiency of (B) Both (A) and (R) are true, but
conversion is (R) is not the correct
explanation of (A).
(A) ~ 45 % (B) ~ 30 %
(C) (A) is true, but (R) is false.
(C) ~ 25 % (D) ~ 50 %
(D) (A) is false, but (R) is true.
21. Consider an ideal wind power 26. Identify the most dominant pollutant
generator of the wind speed increases in terms of its concentration levels in
3 times, the power output would urban atmosphere.
increase by how many times ? (A) Oxides of nitrogen
(A) 3 (B) 9 (B) Oxides of sulphur
(C) 27 (D) 81 (C) Particulate matter
(D) Carbon monoxide
22. Identify the correct sequence in
27. The main constituents of
increasing order of total CO2
photochemical smog are
emissions from various countries at (A) Oxides of sulphur and CO
present. (B) Oxides of sulphur and
(A) Britain < India < China < USA hydrocarbons
(B) India < Britain < China < USA (C) Oxides of nitrogen and CO
(C) Britain < USA < India < China (D) Oxides of nitrogen,
(D) Britain < India < USA < China hydrocarbons and ozone
Paper-II 4 J-89-13
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28. The air borne fraction of carbon is 33. In accordance with the Indian EIA
(A) ~ 0.72 (B) ~ 0.62 notification 2006, within how many
(C) ~ 0.46 (D) ~ 0.38 days if Environmental Appraisal
Committee do not specify the Terms
29. The noise index Leq is used for noise of Reference, the proponent can go
standards in ambient environment of ahead with its own Terms of
urban areas. The prescribed duration Reference.
of the integration associated with Leq
(A) 15 days
is
(A) 12 hours (B) 8 hours (B) 45 days
(C) 1 hour (D) 30 minutes (C) 60 days
30. In alkaline soils, which of the (D) 90 days
following is not present in soluble
state ?
(A) Phosphorous (B) Calcium 34. Which is the correct sequence for
(C) Nitrates (D) Potassium impact assessment process in EIA ?
31. Which one of the following is not a (A) Description of Environment →
post audit activity under Identification of impacts →
environmental audit process ? Prediction of impacts →
(A) Review of draft report by Law Evaluation of impacts →
department. Identification of mitigation
(B) Issue of final report to needs.
functional specialist.
(C) Develop action plan to (B) Identification of impacts →
establish responsibility. Prediction of impacts →
(D) Report audit findings. Evaluation of impacts
→Identification of mitigation
32. Which one of the following pairs is needs.
correctly matched ?
(C) Identification of impacts →
(A) Specification for ISO 14001
environmental Description of Environment →
management Prediction of impacts →
system Evaluation of impacts →
(B) Environmental ISO 14040 Identification of mitigation
performance needs.
evaluation
(D) Prediction of impacts →
(C) Guidelines for ISO 14000
environmental Identification of impacts →
auditing Description of environment →
(D) Environmental ISO 14004 Evaluation of impacts →
labels and Identification of mitigation
declaration needs.
J-89-13 5 Paper-II
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35. Quantifying the energy and raw 39. The geometric mean of 4, 8 and 16 is
material requirement as a part of life (A) 9.3
cycle assessment, is termed as
(B) 8.0
(A) Life Cycle improvement
(C) 4.8
analysis.
(D) 10.2
(B) Life Cycle impact analysis.
(C) Life Cycle inventory.
(D) Life Cycle pre-requisites. 40. The covariance between two data of
N observations each represented by
variables X and Y is given by
36. Which of the following pertains to
– –
“high-waste approach” in dealing ∑ (X – X) (Y – Y)
(A)
with the solid and hazardous wastes ? N2
(A) Burying and burning – 2 – 2
∑ (X – X) (Y – Y)
(B) Recycling (B) N
(C) Composting
– 2 – 2
(D) Reusing ∑ (X – X) (Y – Y)
(C)
N2
37. Assertion (A) : Dumping of sewage – –
∑ (X – X) (Y – Y)
to river water may decrease (D) N
oxygen even below 4 mg/l.
Reason (R) : Dumping of sewage
41. The mean and standard deviation of a
pollutes river water heavily.
Binomial distribution are 9 and 1,
Identify the correct answer :
respectively. The first moment of the
(A) Both (A) and (R) are true with distribution is
(R) being the correct
(A) 9
explanation.
(B) 3
(B) Both (A) and (R) are true, but
(R) is not the correct (C) 1
explanation. (D) 0
(C) (A) is true, but (R) is wrong.
(D) Both (A) and (R) are wrong. 42. Which one of the following is used in
manufacturing flexible plastic bags
38. In most of the studies, a large sample and sheets ?
size is anticipated to (A) Polystyrene (PS)
(A) get a low level of precision. (B) Polyethylene terephthalate
(B) maximize the sampling error. (PET)
(C) get a high level of precision. (C) Low density polyethylene
(D) maximize the standard (LDPE)
deviation. (D) TEFLON
Paper-II 6 J-89-13
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43. Which one of the following is a non- 46. In terrestrial ecosystems, roughly
formal environment education and how much NPP ends up being broken
awareness programme ? down by decomposers ?
(A) Environmental appreciation (A) 90 %
courses. (B) 70 %
(B) National Environment
(C) 50 %
Awareness Campaign.
(D) 10 %
(C) Environmental Education in
school system.
(D) Environmental Management 47. Which of the following BOD level
Business Studies. waste water is permitted to be
released inlands by industries under
44. Bioparks are conceived, developed water (Prevention and Control of
and managed with a goal of Pollution) Act, 1974 ?
conservation of biodiversity through, (A) 30 mg/l
(i) development of educational (B) 80 mg/l
and scientific activities. (C) 100 mg/l
(ii) promoting silviculture and
(D) 150 mg/l
monoculture.
(iii) promoting local community
welfare without harming the 48. Hydraulic conductivity is a function
natural habitat. of
Choose the correct answer from the (A) medium alone
codes : (B) fluid alone
Codes : (C) either fluid or medium
(A) (i) and (ii) (D) both fluid and medium
(B) (ii) and (iii)
(C) (i) and (iii)
49. Dachigan sanctuary is associated
(D) (i), (ii)and (iii)
with
45. In about a 7 metre deep pond the (A) Hangul
series of vegetation development will (B) Rhinoceros
be (C) Barking deer
(A) Submerged → Floating → (D) Leopard
Reed → Herb
(B) Floating → Submerged → 50. Rio+20 summit was held in
Reed → Herb
(A) Durban
(C) Floating → Reed →
(B) Johannesburg
Submerged → Herb
(C) Rio de Janeiro
(D) Submerged → Reed →
Floating → Herb (D) Cancun
J-89-13 7 Paper-II
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Space For Rough Work Paper-II 8 J-89-13
Text of page 1
UGC - NET EXAM JUNE 2013 DATE OF EXAM :30/06/2013
KEYS - PAPER 2
Subject (89 ) ENVIRONMENTAL SCIENCE
Qno Answer
1 B
2 A
3 B
4 D
5 A
6 D
7 B
8 B
9 D
10 A
11 B
12 C
13 D
14 D
15 A
16 C
17 D
18 B
19 D
20 A
21 C
22 D
23 B
24 C
25 B
26 D
27 D
28 C
29 B
30 A
31 D
32 A
33 C
34 A
35 C
36 A
37 A
38 C
39 B
40 A
41 D
42 C
43 B
44 C
45 A
46 A
47 A
48 D
49 A
50 CPage 1 of 8
Source: University Grants Commission. Question paper published by University Grants Commission.