1. The use of anthropoid hazard chemicals like DDT causes reduction in fish population because the chemical mimics the effect of
Luteinizing hormone
Testosterone
Estrogen
All of the above
2. The ionizing radiation, which affects the activities of most of the enzymes is due to
Photoemission of electron
Interaction of a-particles, b-and g-rays with enzymes
Interaction of electron with body.
Interaction of radiation with tissues.
3. SDS-PAGE of tissue proteins under denaturation determines the
Hydrogen bond breakage
Sulfide bridge breakage
Subunits of protein
None of the above
4. Intake of lead may primarily cause the damage of
Brain
Lung
Liver
Kidney
5. Parallelism among the standard curves can be determined by one of the following.
ANOVA
Student's-t test
Chi square
ANCOVA
6. Liquid ammonia can be used in refrigeration because of its
High basicity
High dipole moment
High heat of vaporization
Non-toxic nature
7. The pair of molecules forming strongest intermolecular hydrogen bonds are
H2O and H2
HCOOH and CH3COOH
CH3COCH3 and CHCl3
SiH4 and SiF6
8. Which of these requires quantum nature of light for their explanation
Diffraction
Polarisation
Black body spectrum
Interference
9. The mass of 1 mole of electron is equal to
9.1094 × 6.16 × 10-28 g
9.1094 × 10-31 × 6.023 × 1023 kg
(9.1094 × 10-31) 6.023 × 1023 kg
(6.023 × 1023) 6.1094 × 10-28 gm
10. Which set of stoichiometric coefficient correctly balance the equation

a. H2O2 b. KMnO4 c. H2SO4 d. K2SO4 e. Mn SO4 f. H2O g. O2

a b c d e f g
1 1 1 1 1 1 1
1 2 3 1 2 4 3
2 5 3 2 1 8 5
5 2 3 1 2 8 5
11. Which of the transmutation does not take place by a-decay
238U92 234Th90
213Bi83 213Po84
226Ra88 222Rn86
227Ac89 223Fr87
12. Which radioactive element is considered under Indoor pollutants category
O -16
N -13
Carbon 14
Radon
13. Industries generating hazardous waste are classified as
Brown
Green
Yellow
Red
14. One of the following methods for disposal of municipal solid waste known to be scientific is
Open land disposal
Incerination
Landfill method
Sanitary landfill method
15. One of the following is not an In situ conservation for biological resources.
Biosphere reserve
National Parks
Protected areas
Breeding under confined areas
16. Solar ponds are used for
Salt production
Aquaculture
Power generation
All of the above
17. Biodiesel is produced in India presently from
Calotropis sp
Catharanthus sp
Jatropha sp
Delonix sp
18. Ozone depletion is caused by the increase in the level of
Water vapour
Chlorofluro carbon
Oxygen
Carbon monoxide
19. Thermal power generation in India is carried out by burning
Natural gas
Coal
Oil
All of the above
20. Biogas production is the outcome of
Methanogenesis
Pyrolysis
Methanogenesis and Gasification
Gasification
21. Mauna Loa, in Hawaii is famous for
Botanical Garden
Monitoring sea level rise since 1950
Biggest collection of mammals fossils
Continuous monitoring of atmospheric CO2 since 1957.
22. To generate environmental awareness Paryavaran Vahini Scheme was launched in
1998
1968
1992
1994
23. General Circulation Model are used to
predict climate
predict cyclones
study ocean currents
study temperature on wind
24. Among the following which country has lowest per capita green house gas emission
France
India
China
Mexico
25. Water (Prevention Control of Pollution) Act 1974, industries are allowed to release
waste in inland water having BOD level
100 mg/l
30 mg/l
150 mg/l
80 mg/l
26. Richael Carsson in her book Silent Spring has raised concern on
Economical social impacts
Deforestation
Climate change
Impacts of agro-chemicals on ecological functions
27. The term oligotrophic refers to
Higher nutrients in water
High aquatic productivity
Low nutrients and low productivity
Algal blooms
28. Following initiative under International efforts made to have household eco-friendly refrigerators
Kyoto Protocol
Basal Convention
Montreal Protocol
CITES
29. The that stands for relative importance of different items in a data set is
Weighted mean
Harmonic mean
Arithmetic mean
Geometric mean
30. In symmetrical distribution pattern
Median, Mean and Mode coincide
Mean Median coincide
Mean Mode coincide
Mode Median coincide
31. Which statistical device helps in analysing the co-variation of two or more variables
Regression
Correlation
Standard deviation
Mean of the variables
32. Stoke's Law of Settling Velocity is represented by
V alfa d
V alfa 1/a n
V 1/d
V cd
33. Correct arrangement in order of decreasing soil particle size
Sand, clay, silt
Silt, sand, clay
Sand, silt, clay
Clay, silt, sand
34. Comparing continental and oceanic crust
the chemical composition of crust does not vary.
the Fe content in continental crust is more than that of oceanic crust.
the Si and Al content in continental crust is more than that of oceanic crust.
the Na, Ca, Al content in oceanic crust is more than that of continental crust.
35. The size distribution of particles in soil and sediments generally follow
binomial distribution
normal distribution
linear distribution
log-normal distribution
36. Maximum density of water is at
0 °C
100 °C
4 °C
4 °C
37. The geochemical weathering process can be viewed as
Clay minerals Quartz Al2O3
Primary silicate CO2 clay minerals cations HCO-3 H4 SiO4
Primary silicate Al2O3 SiO2 CaO
Clay minerals Fe2O3 Al2O3 SiO2 CaO
38. Which group of minerals represent
Polymorphic transformation
Non-substitutional representation
Isomorphic substitution
Unmixed presence of different non silicates
39. Garnet is a metamorphic product of
Feldspar
Quartzite
Mica
Serpentine
40. Formation of marble can be represented by
CaSiO3-> Ca+2 SiO3-2
CaO CaCO3
CaCO3 -.CaO CO2
CaCO3 SiO2-> CaSiO3 CO2
41. For the precipitation of CaCO3 from water Ca+2 CO3-2 CaCO3 the equilibrium constant K is 10-8.3 . This indicates that
Ca+2 CO3-2 concentration are equal in water
m CO3-2 m Ca+2
m Ca+2 m Co3-2
m Ca+2 m Co3
42. How many sites as potential areas for biosphere reserves have been identified by the
National MAB Committee for the Department of Environment
13 23
33 43
43. Which one of the following is not a permitting cryoprotectant
Glycerol
DMSO
Sucrose
2 propanediol
44. The aggregation of all eco systems on the earth is referred to as
Atmosphere
Ecosphere
Stratosphere
Ionosphere
45. Which one of the following is not a biofertilizer
Aquatic ferns
Blue-green algae
Phosphate-Solubilising micro-organisms
Vermicompost
46. Who first used and defined "Ecology" in 1866
H. Reiter
Haeckel
Charles Elton
Odum
47. CITES has following schedules in order of priority to protect animals and plants from trade
Schedule II, III
Schedule III
Schedule III, III, I
Schedule II, III
48. Methamoglobinemia is actually caused by water pollution containing
NO2 NO-3
NH+4 NO-2
49. Environmental Impact Assessment is mandatory for certain developmental project under one of the following legislation
The Factories' Act
Forest Act
Environment (Protection) Act
Air (Pollution and Control) Act
50. Which one of the following air pollution control device has highest efficiency in controlling dust
Wet Scruber
Electrostatic precipitator
Venturi Scruber
Cyclonic spray scruber