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1. The most commonly used method for desalination of water is–
(A) Distillation (B) Reverse osmosis✓
(C) Electrodialysis (D) Flash evaporation
2. Vehicular pollution emits mainly–
(A) S02 (B) CO✓
(C) NO (D) Ozone
3. Air pollution can be controlled & reduced considerably, but which one of the following factors comes in its way ?
(A) Politics (B) Economics✓
(C) Ma~power (D) Geography
4. When was Ganga action plan launched?
(A) June 1985✓ (B) December 1985
(C) May 1984 (D) July 1984
5. In which Biodiversity act was year Proposed?
(A) 2000✓ (B) 2002
(C) 2004 (D) 1998
6. How many agro-climatic zones are found in India ?
(A) 15✓ (B) 16
(C) 17 (D) 18
7. Indian Institute of Petroleum in situated at–
(A) New Delhi (B) Goa
(C) Dehradun✓ (D) Mumbai
8. Which were the first living beings to establish themselves on rocky slopes ?
(A) Toads (D) Grasses
(C) Lichens✓ (D) Frogs
9. The ministry of Environment was set up in–
(A) 1970 (B) 1975
(C) 1980✓ (D) 1985
10. The residence time of N20 in atmosphere is approximately–
(A) 15 years (B) 150 years✓
(C) 15 weeks (D) 15 days
11. 1 Dobson unit at standard temperature and pressure is equal to ozone column thickness of–
(A) 1 mm (B) 10 mm
(C) 100 mm (D) 0.01 mm✓
12. Among the following which gas is found in maximum concentration in atmosphere?
(A) Rn (B) Xe
(C) Kr (D) Ar✓
13. Solubility of gases in water can be calculated by using–
(A) Darcy's law (B) Henry's law✓
(C) Avagadro's law (D) Stoke's law
14. The origin of simplest life is attributed to–
(A) Proteozoic Era (B) Cambrian Era
(C) Archaezoic Era✓ (D) None of the above
15. Which forest area in India was first brought under control & protection ?
(A) Malabar✓ (B) Konkan
(C) Garhwal (D) Sunderbans
16. The process used for removal of water hardness is–
(A) Zeolite process✓ (B) Haber's process
(C) Ostwald process (D) None of the above
17. The normal lapse rate of temperature per kilometer is–
(A) 6.4°C✓ (B) 4.6 °C
(C) 10°C (D) 9°C
18. Which of the following enzymes is involved in the primary carboxylation in C4 plants?
(A) RUBP Carboxylase (B) PEP✓
(C) Oxygenase (D) None of the above
19. The specific heat of water is–
(A) 1 call/gml/ ° C✓ (B) 4.18cal/gm/° C
(C) 1 Ioule/gml/ ° C (D) 10 call/gml/° C
20. What is the studies of trees as individuals in relation to their environment known as ?
(A) Forest ecology (B) Forest Synecology
(C) Forest Autecology✓ (D) All of the above
21. Which term represents the sum total of life on earth ?
(A) Biomass (B) Gaia
(C) Biosphere✓ (D) Biome
22. What is a chemical substance or physical agent capable of inducing inheritable genetic change called ?
(A) Carcinogen (B) Mutagen✓
(C) Teratogen (D) Tumorogen
23. Which is the most abundant of all the hydrocarbon pollutants in the atmosphere ?
(A) Propane (B) Methane✓
(C) Butane (D) Benzene
24. In which of the following, inverted pyramid of biomass is found?
(A) Grassland ecosystem (B) Pond ecosystem✓
(e) Desert ecosystem (D) Forest ecosystem
25. Which type of symbiosis is obligatory ?
(A) Mutualism✓ (B) Protocooperation
(C) Commensalism (D) Amensalism
26. Who formulated the ecological concept of the pyramid of numbers ?
(A) Charles Elton✓ (B) Paul R.. Ehrlich
(C) Paul Colivaux (D) All of the above
27. When did the Three mile island disaster occur?
(A) 1972 (B) 1979✓
(C) 1980 (D) 1976
28. When was project tiger launched in India?
(A) 1972 (B) 1973✓
(C) 1978 (D) 1974
29. When was the use of DOT banned for agricultural purposes in India ?
(A) 1962 (B) 1985✓
(C) 1974 (D) 1971
30. The process of preparing compost with the help of earth worm is known as–
(A) Composting (B) Bioslury
(C) Vermi composting✓ (D) Maturing
31. Lambert's & Beer's law is used in–
(A) Spectrophotometer✓ (B) Chromatography
(C) Potentiometer (D) pH meter
32. Which category of wastewater dosen't require seeding during a BOD test ?
(A) Distillery spentwash (B) Dyeing unit effluent
(C) Domestic sewage✓ (D) Pulp & Papermill effluent
33. Who coined the term symbiosis ?
(A) A. G. Tansley (B) De Bary✓
(C) Clements (D) McDougall
34. The main pollutant of London smog was–
(A) S02✓ (B) N02
(C) PAN (D) Ozone
35. Which harmful gas is emitted by masonry building materials, even ground water?
(A) H2S (B) Radon✓
(C) Ammonia (D) CO2
36. Which of the following is known as liquid gold ?
(A) Water (B) Petroleum✓
(C) Mercury (D) Mustard oil
37. About 50% of the atmosphere lies below–
(A) 5.6 km✓ (B) 10 km
(C) 15 km (D) 30 km
38. Which of the following is mainly responsible for eutrophication ?
(A) Phosphate✓ (B) Nitrate
(C) Carbonate (D) Sulphate
39. The dominance of a new genetic form as a result of environment change is called–
(A) Adaptation (B) Natural selection✓
(C) Succession (D) Synergism
40. Which region of the seas & oceans are the most polluted ?
(A) Estuarine (B) Coastal✓
(C) Sea depths (D) Coral
41. At which temp. density of water is found maximum?
(A) 00 C (B) 100 ° C
(C) 15°C (D) 4°C✓
42. Who gave the term ecosystem and when?
(A) 1978 (B) 1968
(C) 1988✓ (D) 1998
43. The single largest class of insecticides of total registered pesticides in the world is–
(A) Organochlorine (B) Organophosphate✓
(C) Carbamate (D) Pyrethroids
44. After methane and carbon dioxide which gas in found in highest concentration in biogas ?
(A) CO (B) H2✓
(C) N2 (D) H2S
45. Mycorrhiza help in the uptake of–
(A) Potassium (B) Phosphorus✓
(C) Nitrate (D) Boron
46. Muscovite is example of which group of 24. minerals?
(A) Feldspar (B) Ferromagnesium
(C) Quartz (D) Mica✓
47. Which CFC was discovered first?
(A) CFC - 11 (B) CFC - 12✓
(C) CFC - 114 (D) CFC - 115
48. Mosquito repellent coils/mats contain–
(A) Paraquat (B) BHC
(C) Toxaphene (D) Derivatives of Allethrin✓
49. Chaparral vegetation is found in which area?
(A) Deccan plateau (B) Coastal India
(C) Mediterranean areas✓ (D) Between equator & temperate
50. Nalgonda technique is used for–
(A) Chloride (B) Fluoride✓
(C) Bromide (D) Cadmium
1. The most commonly used method for desalination of water is–
(A) Distillation (B) Reverse osmosis✓
(C) Electrodialysis (D) Flash evaporation
2. Vehicular pollution emits mainly–
(A) S02 (B) CO✓
(C) NO (D) Ozone
3. Air pollution can be controlled & reduced considerably, but which one of the following factors comes in its way ?
(A) Politics (B) Economics✓
(C) Ma~power (D) Geography
4. When was Ganga action plan launched?
(A) June 1985✓ (B) December 1985
(C) May 1984 (D) July 1984
5. In which Biodiversity act was year Proposed?
(A) 2000✓ (B) 2002
(C) 2004 (D) 1998
6. How many agro-climatic zones are found in India ?
(A) 15✓ (B) 16
(C) 17 (D) 18
7. Indian Institute of Petroleum in situated at–
(A) New Delhi (B) Goa
(C) Dehradun✓ (D) Mumbai
8. Which were the first living beings to establish themselves on rocky slopes ?
(A) Toads (D) Grasses
(C) Lichens✓ (D) Frogs
9. The ministry of Environment was set up in–
(A) 1970 (B) 1975
(C) 1980✓ (D) 1985
10. The residence time of N20 in atmosphere is approximately–
(A) 15 years (B) 150 years✓
(C) 15 weeks (D) 15 days
11. 1 Dobson unit at standard temperature and pressure is equal to ozone column thickness of–
(A) 1 mm (B) 10 mm
(C) 100 mm (D) 0.01 mm✓
12. Among the following which gas is found in maximum concentration in atmosphere?
(A) Rn (B) Xe
(C) Kr (D) Ar✓
13. Solubility of gases in water can be calculated by using–
(A) Darcy's law (B) Henry's law✓
(C) Avagadro's law (D) Stoke's law
14. The origin of simplest life is attributed to–
(A) Proteozoic Era (B) Cambrian Era
(C) Archaezoic Era✓ (D) None of the above
15. Which forest area in India was first brought under control & protection ?
(A) Malabar✓ (B) Konkan
(C) Garhwal (D) Sunderbans
16. The process used for removal of water hardness is–
(A) Zeolite process✓ (B) Haber's process
(C) Ostwald process (D) None of the above
17. The normal lapse rate of temperature per kilometer is–
(A) 6.4°C✓ (B) 4.6 °C
(C) 10°C (D) 9°C
18. Which of the following enzymes is involved in the primary carboxylation in C4 plants?
(A) RUBP Carboxylase (B) PEP✓
(C) Oxygenase (D) None of the above
19. The specific heat of water is–
(A) 1 call/gml/ ° C✓ (B) 4.18cal/gm/° C
(C) 1 Ioule/gml/ ° C (D) 10 call/gml/° C
20. What is the studies of trees as individuals in relation to their environment known as ?
(A) Forest ecology (B) Forest Synecology
(C) Forest Autecology✓ (D) All of the above
21. Which term represents the sum total of life on earth ?
(A) Biomass (B) Gaia
(C) Biosphere✓ (D) Biome
22. What is a chemical substance or physical agent capable of inducing inheritable genetic change called ?
(A) Carcinogen (B) Mutagen✓
(C) Teratogen (D) Tumorogen
23. Which is the most abundant of all the hydrocarbon pollutants in the atmosphere ?
(A) Propane (B) Methane✓
(C) Butane (D) Benzene
24. In which of the following, inverted pyramid of biomass is found?
(A) Grassland ecosystem (B) Pond ecosystem✓
(e) Desert ecosystem (D) Forest ecosystem
25. Which type of symbiosis is obligatory ?
(A) Mutualism✓ (B) Protocooperation
(C) Commensalism (D) Amensalism
26. Who formulated the ecological concept of the pyramid of numbers ?
(A) Charles Elton✓ (B) Paul R.. Ehrlich
(C) Paul Colivaux (D) All of the above
27. When did the Three mile island disaster occur?
(A) 1972 (B) 1979✓
(C) 1980 (D) 1976
28. When was project tiger launched in India?
(A) 1972 (B) 1973✓
(C) 1978 (D) 1974
29. When was the use of DOT banned for agricultural purposes in India ?
(A) 1962 (B) 1985✓
(C) 1974 (D) 1971
30. The process of preparing compost with the help of earth worm is known as–
(A) Composting (B) Bioslury
(C) Vermi composting✓ (D) Maturing
31. Lambert's & Beer's law is used in–
(A) Spectrophotometer✓ (B) Chromatography
(C) Potentiometer (D) pH meter
32. Which category of wastewater dosen't require seeding during a BOD test ?
(A) Distillery spentwash (B) Dyeing unit effluent
(C) Domestic sewage✓ (D) Pulp & Papermill effluent
33. Who coined the term symbiosis ?
(A) A. G. Tansley (B) De Bary✓
(C) Clements (D) McDougall
34. The main pollutant of London smog was–
(A) S02✓ (B) N02
(C) PAN (D) Ozone
35. Which harmful gas is emitted by masonry building materials, even ground water?
(A) H2S (B) Radon✓
(C) Ammonia (D) CO2
36. Which of the following is known as liquid gold ?
(A) Water (B) Petroleum✓
(C) Mercury (D) Mustard oil
37. About 50% of the atmosphere lies below–
(A) 5.6 km✓ (B) 10 km
(C) 15 km (D) 30 km
38. Which of the following is mainly responsible for eutrophication ?
(A) Phosphate✓ (B) Nitrate
(C) Carbonate (D) Sulphate
39. The dominance of a new genetic form as a result of environment change is called–
(A) Adaptation (B) Natural selection✓
(C) Succession (D) Synergism
40. Which region of the seas & oceans are the most polluted ?
(A) Estuarine (B) Coastal✓
(C) Sea depths (D) Coral
41. At which temp. density of water is found maximum?
(A) 00 C (B) 100 ° C
(C) 15°C (D) 4°C✓
42. Who gave the term ecosystem and when?
(A) 1978 (B) 1968
(C) 1988✓ (D) 1998
43. The single largest class of insecticides of total registered pesticides in the world is–
(A) Organochlorine (B) Organophosphate✓
(C) Carbamate (D) Pyrethroids
44. After methane and carbon dioxide which gas in found in highest concentration in biogas ?
(A) CO (B) H2✓
(C) N2 (D) H2S
45. Mycorrhiza help in the uptake of–
(A) Potassium (B) Phosphorus✓
(C) Nitrate (D) Boron
46. Muscovite is example of which group of 24. minerals?
(A) Feldspar (B) Ferromagnesium
(C) Quartz (D) Mica✓
47. Which CFC was discovered first?
(A) CFC - 11 (B) CFC - 12✓
(C) CFC - 114 (D) CFC - 115
48. Mosquito repellent coils/mats contain–
(A) Paraquat (B) BHC
(C) Toxaphene (D) Derivatives of Allethrin✓
49. Chaparral vegetation is found in which area?
(A) Deccan plateau (B) Coastal India
(C) Mediterranean areas✓ (D) Between equator & temperate
50. Nalgonda technique is used for–
(A) Chloride (B) Fluoride✓
(C) Bromide (D) Cadmium
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