UGC NET 2016: July, Paper II, Environmental Sciences
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PAPER-II
ENVIRONMENTAL SCIENCES
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J 8 9 1 6 (In words)
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Number of Pages in this Booklet : 12 Number of Questions in this Booklet : 50
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J-89-16 1 P.T.O.
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ENVIRONMENTAL SCIENCES
Paper – II
Note : This paper contains fifty (50) objective type questions of two (2) marks each. All
questions are compulsory.
1. Photoionization of gas molecules maintain the temperature profile of which atmospheric
layer ?
(1) Troposphere (2) Stratosphere
(3) Mesosphere (4) Thermosphere
2. Around the mid latitude, the surface winds are generally
(1) Gradient (2) Geostrophic
(3) Subgeostrophic (4) Cyclonic
3. How many biogeographic regions are reported to exist in India ?
(1) Five (2) Seven
(3) Ten (4) Three
4. Energy transfer and nutrient flow through various trophic levels can be described as
(1) Linear
(2) Cyclic
(3) Linear and cyclic respectively
(4) Cyclic and linear respectively
5. The highest rate at which individuals can be harvested without reducing the population
size is called maximum sustainable yield of a
(1) Population (2) Community
(3) Ecosystem (4) Landscape
Paper-II 2 J-89-16
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6. Leslie matrix population model is generally used to determine
a. the growth of population.
b. the age distribution within population over time.
c. the prey-predator interactions.
Choose the correct answer :
(1) a only (2) a and c only
(3) b and c only (4) a and b only
7. If ΔNn is equal to production of new individual in the population, Δt and N represent time
and initial number of individuals of a population, then natality rate per unit of population
is
ΔNn ΔNn
(1) (2)
Δt NΔt
NΔt
(3) ΔNn – NΔt (4)
ΔNn
8. In a health survey, 38 of 120 men and 24 of 80 women are found to be affected by nicotine
by smoking. What is the probability of a randomly selected male being a smoker ?
(1) 0.32 (2) 0.19
(3) 0.38 (4) 0.12
–
9. If for a sample size (N) of 64, the mean (X) and standard deviation (SD) are found to be
82 and 6. Then standard error (SE) for the mean is
(1) 0.75 (2) 0.14
(3) 10.4 (4) 2.2
10. ‘Public hearing’ is not mandatory for project like
(1) building construction project
(2) mining project
(3) oil refinery project
(4) river valley project
J-89-16 3 Paper-II
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11. The preparedness for prevention of chemical accidents and emergency in industry should
be made according to the statutory framework of
a. The National Environmental Tribunal Act, 1975
b. The Public Liability Insurance Act, 1991
c. The Factories Act, 1948
d. The Water (Prevention and Control of Pollution) Act, 1974
Choose the correct answer :
(1) a, b and c only (2) b, c and d only
(3) b and c only (4) a, b, c and d
12. The term (life) of a patent from the date of filing is
(1) 5 years (2) 100 years
(3) 20 years (4) 50 years
13. According to the Hazardous Waste (Management and Handling) Rules, 1989, the limit for
Polyaromatic Hydrocarbons (PAH) in waste oil suitable for recycling should be less than
(1) 8% (2) 10%
(3) 6% (4) 15%
14. The main objectives of the Wildlife (Protection) Act, 1972 are
a. Restricting hunting, killing or overexploitation of species.
b. Protection of wildlife, preservation of natural habitats and environment.
c. Recognizing the right of people to a healthy environment.
Choose the correct answer :
(1) a and b only (2) b and c only
(3) a and c only (4) a, b and c
15. The signing ceremony of Paris agreement on climate change was held on April 22, 2016 at
UN headquarters. The agreement will be open for signatures by the countries till
(1) December 22, 2016 (2) April 21, 2017
(3) December 21, 2017 (4) March 21, 2018
Paper-II 4 J-89-16
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16. The committee, which reviews the EIA and EMP reports of developmental projects in
Ministry of Environment, Forest and Climate Change, is called
(1) Project Assessment Committee
(2) Environment Appraisal Committee
(3) Project Evaluation Committee
(4) Environmental Clearance Committee
17. In EIA, after official notification, time given to hold public hearing is
(1) 10 days (2) 15 days
(3) 30 days (4) 50 days
18. The corporate social responsibility has been made mandatory since
(1) 2010 (2) 2014
(3) 2015 (4) 2013
19. The guiding principles for the National Land Utilization Policy are as follows :
a. Inclusive growth, poverty eradication and gender equality – equal opportunities.
b. Balanced development and intergenerational justice.
c. Efficient utilization of resources and mitigation of impacts.
d. Integrated and comprehensive development planning.
Choose the correct answer :
(1) a and b only (2) a, b and c only
(3) b, c and d only (4) a, b, c and d
20. Degradation of different categories of pesticides by soil microorganism is called
(1) Biotransformation (2) Biomineralization
(3) Bioaugmentation (4) Biomagnification
J-89-16 5 Paper-II
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21. Given below are two statements. One labelled as Assertion (A) and the other labelled as
Reason (R) :
Assertion (A) : CO can contribute to the photochemical smog problem in cities.
Reason (R) : It aids in formation of surface ozone.
Choose the correct answer :
(1) Both (A) and (R) are correct and (R) is the correct explanation of (A).
(2) Both (A) and (R) are correct and (R) is not the correct explanation of (A).
(3) (A) is true but (R) is false.
(4) (A) is false but (R) is true.
22. For spherical aerosol particles smaller than about 30 μm and with density much greater
than air, their settling velocity varies with their size (d) as
(1) ∝d (2) ∝ d–1
(3) ∝ d–2 (4) ∝ d2
23. Given below are two statements. One labelled as Assertion (A) and the other labelled as
Reason (R) :
Assertion (A) : Sound barriers alongside motorways in urban areas are very effective
in controlling noise.
Reason (R) : They act as reflectors of sound back into motorways and upwards.
Choose the correct answer :
(1) Both (A) and (R) are correct and (R) is the correct explanation of (A).
(2) Both (A) and (R) are correct and (R) is not the correct explanation of (A).
(3) (A) is true but (R) is false.
(4) (A) is false but (R) is true.
24. The effect of sulphate aerosol in the Earth’s atmosphere is to
(1) decrease precipitation
(2) destroy ozone
(3) cool global climate
(4) warm global climate
Paper-II 6 J-89-16
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25. Solar radiation of average energy ~ 1.25 eV and intensity 500 W/m2 are incident on the
surface of a solar flat plate collector. What is the approximate photon flux density
impinging on the surface of the collector ?
(1) ~ 5 × 1022 photons m–2s–1
(2) ~ 2 × 1022 photons m–2s–1
(3) ~ 2.5 × 1020 photons m–2s–1
(4) ~ 2.5 × 1021 photons m–2s–1
26. A solar pond based electricity generation plant has an efficiency of 5% and power output
of 500 mW. If the solar insolation is 1000 W/m2, what is the area of solar pond ?
(1) 5 km2 (2) 10 km2
(3) 1.0 km2 (4) 20 km2
27. Intended nationally determined contribution of India envisages reduction in carbon
intensity by 2030 below 2005 level by what percentage ?
(1) 22 – 25 % (2) 33 – 35 %
(3) 35 – 40 % (4) 40 – 50 %
28. By the year 2022, India’s target of producing power from wind energy is
(1) 50 GW (2) 60 GW
(3) 75 GW (4) 120 GW
29. Which among the following surfaces has maximum albedo ?
(1) Leafy crops (2) Dry sand
(3) Calm sea water (4) Dark asphalt
30. A wetland ecosystem has a very high Biological Oxygen Demand (BOD). Which of the
following statement about such a wetland is correct ?
(1) It has high level of microbial pollution.
(2) It has very low level of microbial pollution.
(3) There is no microbial pollution.
(4) It is highly turbid.
J-89-16 7 Paper-II
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31. Desertification is the process of
(1) increase in desert area
(2) sand dune movement
(3) land degradation
(4) arid zone management
32. Ecological restoration is the process of rebuilding a degraded ecosystem till
(1) it becomes pollution free and provides solace to the people.
(2) it becomes free of disturbance.
(3) its structure and functions are restored.
(4) it starts providing some ecosystem services.
33. Consider the following four statements about wetland ecosystems :
a. They are the transitional zones between terrestrial and aquatic ecosystems.
b. They are highly productive.
c. They are the source of greenhouse gases.
d. They normally occur in the floodplain of rivers.
Choose the correct answer :
(1) a and b only
(2) a, b and c only
(3) b, c and d only
(4) a, b, c and d
34. In soil conservation programme, the tillage where residues of previous crops are left in the
soil is called
(1) Reduced tillage (2) No tillage
(3) Conservation tillage (4) Contour plowing
Paper-II 8 J-89-16
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35. Which of the following will provide the most valuable information for determining risk of
mass wasting of an area ?
(1) Seismometer
(2) Analysis of stereo satellite data
(3) Measurement of acceleration due to gravity
(4) Geological map of the region
36. The rapid downslope movement of ice or snow is called as
(1) Mudflow (2) Solifluction
(3) Lahars (4) Avalanches
37. The landform created by subglacial meltwater is known as
(1) Moraine (2) Eskers
(3) Cirques (4) Kames
38. Among the following gases, which is not emitted by volcano ?
(1) NOx (2) SOx
(3) CO2 (4) H2S
39. In remote sensing, ground truth data is generally required for
a. calibration of sensor
b. analysis of remotely sensed data
c. accuracy assessment
Choose the correct answer :
(1) a only (2) b and c only
(3) a, b and c (4) a and b only
J-89-16 9 Paper-II
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40. A species the population of which is low enough for it to be at risk of becoming extinct,
but not low enough that it is in imminent danger of extinction is called
(1) Endangered species
(2) Threatened species
(3) Vulnerable species
(4) Rare species
41. Landscape mosaic comprises
(1) matrices and patches
(2) patches and corridors
(3) matrices, patches and corridors
(4) matrices and corridors
42. Which of the following country is not a megadiversity centre of biodiversity ?
(1) Columbia (2) India
(3) Brazil (4) Argentina
43. Sclerophyllous leaves are the characteristic features of
(1) Chaparral Vegetation
(2) Grassland Vegetation
(3) Tropical Vegetation
(4) Alpine Vegetation
44. Among the plants listed below, which is not producing allergenic pollen grain ?
(1) Mango (2) Neem
(3) Fan Palm (4) Pine
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45. A species having a dominating influence on the structure and function of a community or
ecosystem is known as
(1) Fundamental species
(2) Functional species
(3) Keystone species
(4) Indicator species
46. Which of the following trace atmospheric gases is not an acid rain precursor ?
(1) Dimethyl sulfide (2) Hydrogen sulfide
(3) Nitrous oxide (4) Nitric oxide
47. According to WHO report 2015, out of 20 most polluted cities of the world, India has
(1) 12 (2) 18
(3) 10 (4) 13
48. With respect to sea, increase in CO2 abundance is not responsible for which of the
following ?
(1) Increase in pH of sea water.
(2) Increase in concentration of bicarbonate ions.
(3) Coral bleaching.
(4) Enhanced dissolution of calcareous materials.
49. Elements that cycle in the environment and that also have a gaseous phase at some point
in their cycle include which of the following ?
a. Phosphorus
b. Sulphur
c. Carbon
Choose the correct answer :
(1) a only (2) b only
(3) b and c only (4) a and c only
50. Poor aeration and high water holding capacity are characteristic features of
(1) Sandy soil (2) Loam soil
(3) Clay soil (4) Sandy Loam soil
______________
J-89-16 11 Paper-II
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