1. For a clear night and with wind speeds 3 the atmosphere is

stable


slightly unstable


neutral


slightly stable


2. Assertion Chemosynthesis plays an important role in cycle.
Reason In chemosynthesis, some sulphur compounds act as source of energy.

Codes

Both and are true and is the correct explanation.


Both and are true and is not the correct explanation.


is true but is false.


is false but is true.



3. Which of the following is NOT a correct statement

Tropics are the warmest and wettest regions.


Subtropical high pressure zones create dry zones at about 30° N and S.


Temperature and precipitation are lowest at the poles.


Temperature is lowest and precipitation is highest at the poles.



4. Protecting nature and the wilderness for its own sake is referred as

Deep ecology


Shallow ecology


Self ecology


Selfless ecology



5. For the analysis of oxides of Nitrogen, which of the following set of reagents are used

Sulphanilic acid, NEDA, H2O2, HNO3


Sulphamic acid, NEDA, H2O2, HNO3


Sulphamic acid, Nicotine, H2O, HNO3


Sulphomolybdic acid, NEDA, H2O2, H2SO4



6. Number of ions of cadmium present in 3n moles of cadmium nitrate is

18.069 × 1023


18.069 × 1020


18.069 × 1017


18.069 × 1014



7. Which one of the following organisms is a free living nitrogen fixer

Rhizobium


Azotobacter


Frankia


Dorylimes



8. Which one of the following has highest bioconcentration factor

DDT


DDE


Chlordane


Heptachlor



9. Consider an Ocean Thermal Energy Conversion (OTEC) process operating between 30 °C and 5 °C. What would be the maximum possible efficiency for an electricity generator station operating with these temperatures

15%


25% 40%



10. The process of 'Nebulisation' in Atomic Absorption Spectrop­hotometry is to

convert the liquid sample to gaseous form.


convert the liquid sample into small droplets.


sublimate the sample.


solubilization of the solute.



11. Individuals of a plant species occurring in a particular area constitute

fauna


flora


flora and fauna


population



12. A local population genetically, structurally and functionally adapted to its local environment is called

ecotype


ecophene


ecad


ecocline



13. Mycorrhizae is an example of

Ammensalism


Commensalism


Parasitism


Symbiosis



14. The entire series of communities of biotic succession from pioneer to climax community is known as

Troph


Sere


Population


Biome



15. In which of the following ecosystems the pyramid of biomass is inverted

Forest


Grassland


Pond


Desert



16. The first National Park established in India is

Kaziranga National Park


The Jim Corbett National Park


Hazaribagh National Park


Gir National Park



17. The animals that rest or swim on the surface of the lakes are called

Nektons


Neustons


Benthos


Peritons



18. Which of the following is an example of in situ conservation of biodiversity

Captive breeding


Seed bank


National park


Pollen bank



19. A biome contains

many ecosystems


many communities


many populations


a single ecosystem



20. In Bhopal gas tragedy, the quantity of Methyl Isocyanate leaked into the atmosphere was around

180 tonnes


60 tonnes


112 tonnes


40 tonnes



21. What is the sequence of arrival of seismic waves at a recording station

P-wave, S-wave, L-wave, R-wave.


S-wave, P-wave, R-wave, L-wave.


R-wave, L-wave, P-wave, S-wave.


S-wave, L-wave, R-wave, P-wave.



22. The presence of ammonia in groundwater may indicate a nearby

coal mine


municipal solid waste dumping site


thermal power plant


granite quarry



23. Given below are statements in the context of a truly vertical aerial photograph
The principal point, nadir point and isocentre coincide.

Isocentre is the centre from where the radial displacements of images take place.

Tilt is a character of vertical aerial photograph.
Identify the correct answer from the codes given below

only


only


only


only



24. Kaolinite is a type of clay Mineral with layers of silicon and aluminium in the ratio of

1 1

1 2

2 1

3 1



25. In an ideal Magneto Hydro Dynamic Power Generator, the separation between the plates 0.5 magnetic flux density 2 Wb/m2 and average fuel velocity 500 m/sec. The voltage developed across the plates will be

500 V

1000 V

2000 V

5000 V



26. If the wind speed in a certain area increases by a factor of 2 from 4 m/s to 8 the power output from an ideal wind mill will increase by a factor of

4

8

16

2



27. Under Jawaharlal Nehru Solar Mission of Government of India, a total of 20,000 MW of utility Grid Power (including roof to solar power) is sought to be installed by the year

2020

2022

2025

2030



28. In which country dry steam deposits have been used as such for electricity generation

Italy


Iceland


Austria


New Zealand



29. The resources which are unlimited and where quality is not degraded are termed as

renewable


reusable


immutable


exhaustible



30. The most toxic form of mercury in water is

2 Hg+

Hg2+

H3C Hg+

Hgo



31. Hardness of water is due to the presence of

Calcium and Magnesium ions


Strontium and Nitrate ions


Sodium and Chloride ions


Potassium and Nitrite ions



32. Principal constituents of atmospheric brown clouds are
I. Soot
II. Soil dust
III. Fly ash
IV. Sulphates and nitrates Identify the correct code

I&IIonly


I&IV only


II, III and IV only


II, III and IV



33. The famous 'London Smog' was observed in the year

1750


1952


1972


2000



34. The permissible limit of day time industrial noise as recommended by WHO is

80 dB


75 dB


90 dB


76 dB



35. Surface litter layer on ground soil is also known as

horizon


horizon


horizon


horizon



36. Which one of the following represents the correct Uranium decay series

Uranium . Radium . Radon Polonium


Uranium . Radon . Radium Polonium

Uranium . Radium . Polonium . Radon


Uranium . Radon . Polonium . Radium



37. Hydro power projects with large reservoirs affect the environment by release of

CO


CO2


CH4


NO2



38. Terms of reference is fixed at which stage of EIA process

Screening stage


Scoping stage


Detailed EIA stage


Project Appraisal stage



39. Arrange the functions associated with EIA in a sequential manner
Identification
Prediction
Defining the scope
Impact evaluation and analysis


Codes













40. The role of State Pollution Control Board in EIA is
Public hearing consultation

Issue of NOC
Collecting environmental data
Survey of fauna and flora

Codes

and only


and only


and only


and only



41. Percentage of carbon in a typical municipal solid waste ranges from

50 60


40 50


30 40


20 30



42. Which one of the following has maximum destruction and removable efficiency

Incineration


Biological Treatment


Chemical Treatment


Landfill



43. Wastes are known to be corrosive if the pH is

2


3


4


5



44. Hazardous Waste Management and Handling Rule was enacted in the year

1989


1979


1969


1999



45. For a given set of data 12, 15
and 20, the comparison of geometric
harmonic and arithmetic
mean will be



H G


H G


H G


H G



46. Algal bloom follows a population growth pattern, which is

J shaped


S shaped


Exponential


Linear



47. t-distribution is approximately normal for sample size .

30


10


15


20



48. Two sets of data consisting of 10 and 20 observations have same mean 8 with standard deviations of 1 and respectively. If the two data sets are combined, then the variance is

3


2


5


1.5



49. Match the List I with List II and choose the correct answer from the given codes

List I (Event) List II (Date)
a. Earth Day i. 5th June rd

b. World ii. 3 October Environment Day

c. Ozone Day iii. 22nd April

d. World Nature iv. 16th September Day

Codes

a b c d

i ii iv iii


iii i iv ii


ii i iii iv


iv iii ii i


50. CBD stands for

Convention on Biological Diversity


Conservation Biodiversity Development


Conservation Association for Biodiversity and Management


Cumulative Plan for Biological Diversity