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Quiz

1. Which one of the following is responsible for the energy release by stars ?

(1) Fission
(2) Fusion
(3) Chemical reaction
(4) Gravitational collapse

2. Which one of the following planets is said to be "twin sister" of the Earth ?

(1) Mars
(2) Mercury
(3) Jupiter
(4) Venus

3. In general what is the range of frequency of the "Message Signal" ?

(1) Radio frequency
(2) Audio frequency
(3) Both 'A' and 'B'
(4) Neither 'A' nor 'B'

4. Why is it easier to swim in sea water ?

(1) Atmospheric pressure is highest at the sea
(2) Sea water contains salt
(3) Density of sea water is higher than the ordinary water
(4) None of the above

5. Neutron was discovered by ?

(1) Chadwick
(2) Hahn nad Strassman
(3) Rutherford
(4) Milikan

6. Which one of the following causes green house effect ?

(1) Cosmic rays
(2) Radio waves
(3) Infrared rays
(4) Ultra-violet rays

7. Optical fibre mainly used in communication is based on ?

(1) Less absorption
(2) Less scattering
(3) Refraction
(4) Total internal reflection

8. When a red glass is heated in dark room it will seem ?

(1) Black
(2) Red
(3) Green
(4) Yellow

9. In scuba diving, while ascending towards the water surface, there is a danger of bursting the lungs. It is because ?

(1) Archimede's principle
(2) Boyle's law
(3) Gaham's law of diffusion
(4) Henry's law

10. In the electric supply lines in India, which parameter is kept constant ?

(1) Current
(2) Power
(3) Frequency
(4) Voltage

11. Which of the following cannot be emitted by radioactive substances during their decay ?

(1) Electrons
(2) Prorons
(3) Neutrons
(4) Helium

12. The solar system is an example of ?

(1) Conservation of angular momentum
(2) Conservation of energy
(3) Conservation of linear momentum
(4) None of the above

13. The scent sprayer is based on ?

(1) Archimede's principle
(2) Boyle's law
(3) Bernoulli's theorem
(4) Carle's law

14. Which waves are used in sonography ?

(1) Microwaves
(2) Infrared waves
(3) Sound waves
(4) Ultrasonic waves

15. The blue colour of sky is due to the phenomenon of ?

(1) Dispersion
(2) Refraction
(3) Reflection
(4) Scattering

16. A coin immersed in water pond appears to be raised when view from the top. What is this due to ?

(1) Refraction of light
(2) Reflection of light
(3) Scattering of light
(4) Total internal reflection of light

17. When you pull out the plug connected to an electric appliance, you will often observe a spark. To which property of the appliance is this related ?

(1) Capacitance
(2) Resistance
(3) Inductance
(4) Wattage

18. Soap help in the cleaning of coths because ?

(1) It absorbs the dirt
(2) It reduces surface tension
(3) It increases surface tension
(4) Of some other reason

19. Which one of the following pairs of rays is electromagnetic in nature ?

(1) Alpha rays and cosmic rays
(2) Alpha rays and X-rays
(3) Infrared rays and beta rays
(4) Infrared rays and X-rays

20. Which one of the following is a ferromagnetic material ?

(1) Aluminium
(2) Bismuth
(3) Nickel
(4) Quartz

21. Which one of the following is the weakest force ?

(1) Gravitational force
(2) Electrostatic force
(3) Electromagnetic force
(4) Nuclear force

22. Which one among the following radiations carries maximum energy ?

(1) Infrared
(2) Microwaves
(3) Radio waves
(4) UV-rays

23. Which one of the following common devices works in the basis of the principle of mutual induction ?

(1) LED
(2) Transformer
(3) Tubelight
(4) Photodiode

24. The velocity of the sound is greatest in ?

(1) Air
(2) metal
(3) Water
(4) Vacuum

25. What is the range of frequencies allotted to commercial "FM radio broadcast" ?

(1) 88 To 108 Hz
(2) 88 To 108 KHz
(3) 88 To 108 MHz
(4) 88 To 108 GHz

26. Which one of the following forces lead to separation of the cream from the churned milk ?

(1) Centrifugal force
(2) Cohesive force
(3) Centripetal force
(4) Gravitational force

27. Which of the following device is fully duplex ?

(1) Radio
(2) Mobil phone
(3) Loud speaker
(4) Walky-talky

28. When the matter is cooled to very low temperature, it will form ?

(1) Capacitor
(2) Insulator
(3) Semi-conductor
(4) Super-conductor

29. The blackboard seems black because it ?

(1) Absorbs black colour
(2) Does not reflect any colour
(3) Reflects every colour
(4) Reflects black colour

30. Which one of the following instruments is used by the submarine sailors to see the objects on the surface ?

(1) Gyroscope
(2) Periscope
(3) Microscope
(4) Telescope

31. Which one among the following rays has minimum wavelength ?

(1) Gamma rays
(2) Cosmic rays
(3) Ultra-violet rays
(4) X-rays

32. Who had showed that the electric and magnetic waves are equal in vacuum ?

(1) Albert Enistein
(2) Jsaac Newton
(3) James Clerk Maxwell
(4) Werner Heisenberg

33. Stars are twinkling due to ?

(1) Diffraction
(2) Refraction
(3) Reflection
(4) Scattering

34. Who gave the first evidence of Big-bang theory ?

(1) Albert Einstein
(2) Edwin Hubble
(3) S Chandrasekhar
(4) Stephen Hawking

35. Which one of the following mechanisms uses the pascal's law ?

(1) The hydraulic brakes
(2) The landing of flight
(3) The flight task-off
(4) the floating of ship

36. Which one of the following reactions is the main cause of the energy radiation from the sun ?

(1) Fusion reaction
(2) Fission reaction
(3) Chemical reaction
(4) Diffusion reaction

37. In SONAR, we use ?

(1) Ultrasonic waves
(2) Infrasonic waves
(3) Radio waves
(4) Audible sound waves

38. Which one of the following chemical compounds is responsible for the stimulation of tear glands by the onion ?

(1) A phosphate compound
(2) A nitrate compound
(3) A sulphide compound
(4) A chloride compound

39. 'Freon' used as refrigerants is chemically known as ?

(1) Fluorinated aromatic compound
(2) Fluorinated hydrocarbon
(3) Chlorinated hydrocarbon
(4) Chlorofluoro hydrocarbon

40. What is the jeweller's rouge ?

(1) Ferric carbonate
(2) Ferrous carbonate
(3) Ferric oxide
(4) Ferrous oxide

41. Which one of the following is an element ?

(1) Topaz
(2) Diamond
(3) Ruby
(4) Sapphire

42. Nail polish remover contains ?

(1) Benzene
(2) Formaldehyde
(3) Acetic acid
(4) Acetone

43. Which one among the following when dissolved in water give hissing sound ?

(1) Limestone
(2) Sodalime
(3) Slaked lime
(4) Quick lime

44. Commercially vulcanisation of rubber involves ?

(1) Sulphur
(2) Carbon
(3) Phosphorus
(4) Selenium

45. Which one of the following is used in the preparation of antiseptic solution ?

(1) Potassium nitrate
(2) Iodine
(3) Iodine chloride
(4) Potassium chloride

46. Which one of the following is the softest ?

(1) Aluminium
(2) Copper
(3) Iron
(4) Sodium

47. Vinegar is used as a condiment, and in the picking of vegetables and other foods. What is the constituent of vinegar ?

(1) Butanoic acid
(2) Hexanoic acid
(3) Ethanoic acid
(4) Methanoic acid

48. Making of chappathi is based on ?

(1) Boyle's law
(2) Charle's law
(3) Graham's law
(4) Henry's law

49. Which one among the following agents is added to domestic LPG cylinder to help in the detection of gas leakage ?

(1) Chloroform
(2) Ethanol
(3) Methano
(4) Thioethanol

50. Which one of the following is associated with the formation of brown air in traffic congested cities ?

(1) Carbon dioxide
(2) Carbon monoxide
(3) Nitrogen oxide
(4) Sulphur dioxide

51. What is the pH of pure water ?

(1) 1
(2) 5
(3) 7
(4) 12

52. Which of the following pesticide is applied to the foundation of buildings to prevent termites ?

(1) Aldrin
(2) Atrazin
(3) Carbaryl
(4) Malathion

53. As which one of the following, does carbon occur in its purest from in nature ?

(1) Diamond
(2) Coal
(3) Carbon black
(4) Graphite

54. Rectified spirit contains ?

(1) 95.6% ethanol and 4.4% methanol
(2) 95.6% ethanol and 4.4% water
(3) 95.6% ethanol and 4.4% benzene
(4) 100% ethanol

55. Which one among the following is the natural polymer ?

(1) Cellulose
(2) PVC
(3) Nylon
(4) Teflon

56. If a limestone piece is dipped in water, bubbles evolve. The bubbling is due to ?

(1) Carbon dioxide
(2) Hydrogen
(3) Oxygen
(4) Water vapour

57. 'Misch metal' is widely used in the manufacture of which of the following ?

(1) Material of car break
(2) Smoke detectors
(3) Cigarette lighter
(4) Emergency light

58. Which one of the following compounds was responsible for the epidemic form of disease called 'Minamata Disease' ?

(1) A lead compound
(2) A mercury compound
(3) A sulphur compound
(4) A fluorine compound

59. The flavour of apple is mainly due to which one of the following ?

(1) Benzaldehyde
(2) Benzene
(3) Ethanol
(4) Formalin

60. Which one of the following is used as an anti-freezer, which effectively depresses the freezing point of water in an automobile ?

(1) Ethylene glycol
(2) Glycolic acid
(3) Glutamic acid
(4) Propanoic acid

61. Which one of the following is used as a mordant in dyeing and tanning industry ?

(1) Magnesium chloride
(2) Magnesium carbonate
(3) Magnesium oxide
(4) Magnesium sulphate

62. Carbonated beverages such as soft drinks and soda water contains mainly ?

(1) Carbon dioxide
(2) Calcium carbonate
(3) Calcium hydroxide
(4) Potassium carbonate

63. Which bioinsecticide was first developed on commerical scale ?

(1) DDT
(2) Quinine
(3) Morphine
(4) Sporeine

64. The polymeric fiber used as a substitute for wool in making synthetic blankets, sweater, etc., is ?

(1) Bakelite
(2) Orlon
(3) Nylon
(4) Teflon

65. Food wrapped in newspaper is likely to get contaminated with ?

(1) Aluminium
(2) Iron
(3) Lead
(4) Magnesium

66. Which one of the following petroleum refinery products has the lowest boiling point ?

(1) Diesel
(2) Gasoline
(3) Kerosene
(4) Lubricating oil

67. From which one among the following water source, the water is likely to be contaminated with fluorine ?

(1) Ground water
(2) Rain water
(3) River water
(4) Pond water

68. Which one among the following is not a periopic property i.e., does not show any trend on moving from one side to the other in the periodic Table ?

(1) Atomic size
(2) Electronegativity
(3) Radioactivity
(4) Valency

69. In modern days, which one of the following chemical compounds is used for the hair setting in beauty parlour/ salon ?

(1) A phosphate compound
(2) A sulphur compound
(3) A magnesium compound
(4) A bicarbonate compound

70. Gypaum (Caso4.2H2o) is added to clinker during cement manufacturing to ?

(1) Decrease the rate of setting of cement
(2) Bind the particle of calcium silicate
(3) Facilitate the formation of colloidal gel
(4) Impart strength to cement

71. Contact lenses are made from ?

(1) Polyvinyl chloride
(2) Polystyrene
(3) Teflon
(4) Lucite

72. The coil in a heater is made of ?

(1) Copper
(2) Iron
(3) Nichrome
(4) Tungsten

73. Which one of the following is used to slow down the speed of the neutrons in the nuclear reactor ?

(1) Accelerator
(2) Coolant
(3) Controlling rod
(4) Moderator

74. Vermicompost is a/an ?

(1) Organic bio fertilizer
(2) Inorganic fertilizer
(3) Synthetic fertilizer
(4) Toxic substance

75. Which one among the following polymeres is used for making bullet-proof material ?

(1) Polyvinyl chloride
(2) Polystyrene
(3) Polyethylene
(4) Polyamide

76. Age of fossil may be found out by determining the ratio of two isotopes of carbon. The isotopes are ?

(1) C-12 and C-13
(2) C-13 and C-14
(3) C-12 and C-14
(4) C-12 and carbon black

77. Which one of the following is used as a neturon moderator in "Light Water Reactor (LWR)"

(1) Boron
(2) Graphite
(3) Liquid Sodium
(4) Water

78. The energy currency of our cell/body is ?

(1) AMP
(2) ATP
(3) GTP
(4) NAD

79. Which of the following vitamin is helpful for treatment of viral infection ?

(1) Vitamin A
(2) Vitamin B12
(3) Vitamin C
(4) Vitamin K

80. The five kingdom classification of living organisms was proposed by ?

(1) Charles Darwin
(2) Engler and Prantl
(3) Julian Huxley
(4) R H Whittaker

81. Which of the following hormones given below regulate the calcium level in our blood ?

(1) Parathormone
(2) Enterokinin
(3) Secretin
(4) Thyroxine

82. Which of the following island is known as "Biological paradise" ?

(1) Madagascar island
(2) Galapagos island
(3) Sandwich island
(4) St Helena island

83. Which of the following vitamins is required for the maturation of erythrocytes in human beings ?

(1) Vitamin A
(2) Vitamin B5
(3) Vitamin B12
(4) Vitamin D

84. Agar-agar from the cell wall of red alga, Gracilaria sp. is composed of ?

(1) Galactose
(2) Mannose
(3) Fructose
(4) Sucrose

85. Who is the father of Binomial nomenclature of organisms ?

(1) Carolus Linnaeus
(2) J A Lamarck
(3) Julian Huxley
(4) R H Whittaker

86. Which of the following continent is known as the "Bird continent" ?

(1) Asia
(2) Africa
(3) South America
(4) None of these

87. What is the cause of Addison's disease ?

(1) Hypersecretion of thyroid gland
(2) Hypersecretion of Gonads
(3) Hyposecretion of thyroid gland
(4) Hyposecretion of adrenal gland

88. RNA differs from DNA in having ?

(1) Adenine
(2) Guanine
(3) Thymine
(4) Uracil

89. Father of the Indian Systematic Botany is ?

(1) R Mukherjee
(2) H Santapau
(3) Birbal Sahni
(4) SR Kashyap

90. The term meiosis was coined by ?

(1) Blackmann
(2) Farmer and Moore
(3) Fleming
(4) Liebig

91. The word "Taxonomy" was coinde by ?

(1) De Candolle
(2) C Linnaeus
(3) Lamarck
(4) Theophrastus

92. Interferon suppresses the pathogenic activity of ?

(1) Bacteria
(2) Fungus
(3) Protozoa
(4) Virus

93. The virus was discovered by ?

(1) Haeckel
(2) Ivanowski
(3) Smith
(4) Urey

94. The yellow and orange colour of fruits and flowers are mainly due to ?

(1) Aleuroplast
(2) Chloroplast
(3) Chromoplast
(4) Leucoplast

95. Father of biology is ?

(1) Aristotle
(2) Birbal Sahni
(3) Charles Darwin
(4) C Linnaeus

96. Which one among the following is the rarest type of WBC in the human blood ?

(1) Basophil
(2) Eosinophil
(3) Monocyte
(4) Neutrophil

97. Which among the following hormones is known as the Emergency hormone ?

(1) Adrenalin
(2) Oxytocin
(3) Thyroxine
(4) Vasopressin

98. The bacteria were discovered by which of the following person ?

(1) A V Leeuwenhock
(2) EH Haeckel
(3) H Urey
(4) Ivanowski

99. The beverage 'coconut milk' of green coconut is the ?

(1) Liquid chalaza
(2) Liquid nucellus
(3) Liquid of femal gametophyte
(4) Liquid endosperm

100. Sir Frederick Grant Banting is related to the following hormone of animals ?

(1) Corticol
(2) Insulin
(3) Testosterone
(4) Thyroxine

101. The mad-cow disease in cattles is caused by ?

(1) Bacteria
(2) Protozoa
(3) Prions
(4) Virus

102. Which of the following groups of animals are warm blooded ?

(1) Amphibia
(2) Aves (Birds)
(3) Reptilia
(4) Mammalia

103. Which among the following commercial form of hormones can induce "labour" in the pregnant woman ?

(1) Oxytocin
(2) Thyrocalcitonin
(3) Thyroxine
(4) Vasopressin

104. The vitamin which is very liable and easily destroyed during cooking as well as storage is ?

(1) Vitamin A
(2) Vitamin C
(3) Vitamin E
(4) Vitamin K

105. Chemically silk fibers are predominantly ?

(1) Complex lipid
(2) Carbohydrate
(3) Fatty acids
(4) Protein

106. Which one among the following hormones is the 'stress hormone' of plants ?

(1) Abscisic acid
(2) Auxin
(3) Cytokinin
(4) Gibberellin

107. Which of the following vitamins are to be with our daily diet ?

(1) A, B complex, C and E
(2) A, D, E and K
(3) B complex and C
(4) B complex, C and E

108. To which one of the following types of organisms do mushrooms belong ?

(1) Algae
(2) Fungi
(3) Ferns
(4) Lichens

109. Eating of raw fish can cause deficiency of ?

(1) Vitamin B1
(2) Vitamin B6
(3) Vitamin D
(4) Vitamin K

110. Which of the following vitaminsis essential for the red blood cell formation ?

(1) Folic acid
(2) Niacin
(3) Riboflavin
(4) Thiamine

111. Which among the following is the richest source of ascorbic acid ?

(1) Apple
(2) Bean
(3) Carrot
(4) Guava

112. Which of the following is the X-linked genetic disease ?

(1) Becker's muscular dystrophy
(2) Daltonism
(3) Martin-Bell syndrome
(4) All of the above

113. The richest source of vitamin A are ?

(1) Green peas and beans
(2) Pumpkin and carrots
(3) Pepper and potato
(4) Tomato and onion

114. Which one among the following produces the largest sperm in the plant kingdom ?

(1) Cycas
(2) Mango
(3) Pinus
(4) Sunflower

115. The technique used for the sepration of DNA fragments is ?

(1) Northern blotting
(2) Southern blotting
(3) Western blotting
(4) None of these

116. Which among the following endocrine gland is tempory lasts only for a limited period ?

(1) Adrenal gland
(2) Gonads
(3) Thymus gland
(4) Thyroid gland

117. Which of the following vector spreads the ksala-azar in human beings ?

(1) House fly
(2) Mosquito
(3) Ticks
(4) Sand fly

118. The technique of the development of fruits without fertillization is known as ?

(1) Autogamy
(2) Parthenocarpy
(3) Parthenogenesis
(4) Sporogamy

119. Mosquito can be a vector for following diseases except ?

(1) Dengue fever
(2) Filaria
(3) Kala-azar
(4) Yellow fever

120. Which of the following techniques can be used to establish the paternity of a child ?

(1) DNA finger printing
(2) Chromosome counting
(3) Quantitative analysis of DNA
(4) Protein analysis

121. Which one among the following organs manufacture albumin, fibrinogen and prothrombin ?

(1) Bone marrow
(2) Pancreas
(3) Liver
(4) Spleen

122. Leishmania, the causative agent of kala-azar, multipiles asexually by ?

(1) Budding
(2) Binary fission
(3) Multiple fission
(4) Sporogony

123. Which of the following commercial form of hormone is used in sterile cows to induce lactation ?

(1) Oxytocin
(2) Relaxin
(3) Thyroxine
(4) Vasopressin

124. Which one among the following affects the flowering in plants ?

(1) Auxin
(2) Cytokinin
(3) Florigen
(4) Gibberellin

125. Which one among the following is known as "animal starch" ?

(1) Chitin
(2) Cellulose
(3) Pectin
(4) Glycogen

126. Which among the following is the first hormone produced by genetic engineering ?

(1) Corticol
(2) Insulin
(3) Testosterone
(4) Thyroxine

127. The largest amount of physical and chemical molecules present in the cells is ?

(1) Carbohydrates
(2) Lipids
(3) Nucleic acids
(4) Proteins

128. Which of the following orgainsm does not obey the cell theory ?

(1) Bacteria
(2) Fungi
(3) Plants
(4) Virus

129. The vitamin which is generally excreted by humans in urine is ?

(1) Vitamin A
(2) Vitamin C
(3) Vitamin D
(4) Vitamin E

130. What is the amount of blood filtered by the kidney within a minute ?

(1) 600 ml
(2) 800 ml
(3) 1200 ml
(4) 1600 ml

131. Coagulation of blood in the vessel is prevented during normal condition by ?

(1) Albumin
(2) Calcium
(3) Heperin
(4) Prothrombin

132. The improper function of which of the following results in the condition 'Myxedema' in human beings ?

(1) Adrenal gland
(2) Liver
(3) Pancreas
(4) Thyroid gland

133. Hormone was discovered by ?

(1) Addison
(2) Banting
(3) Funk
(4) Starling

134. The colour of the bile pigment is largely derived from ?

(1) Breakdown of haemoglobin from worn-out cells
(2) Bile salts
(3) Undigested food
(4) Xanthophylls

135. The unit structure of genes is made up of ?

(1) DNA
(2) RNA
(3) Endoplasmic
(4) Magnesium

136. A fatal neurodegenerative disease called "kuru" common in a tribe of Papua New Guinea is caused by ?

(1) Bacteria
(2) Fungi
(3) Prions
(4) Virus

137. Which one of the following vitamins was regareded as the "wonder drug" by Linus Pauling ?

(1) Vitamin A
(2) Vitamin B complex
(3) Vitamin C
(4) Vitamin D

138. The colour of flower petals is due to the presence of ?

(1) Anthocyanin
(2) Carotene
(3) Phycoertythrin
(4) Xanthopyll

139. Kidney stones are mainly formed by which of the following compound ?

(1) Calcium bicarbonate
(2) Calcium oxalate
(3) Silicates
(4) Sodium chloride

140. The cell theory was proposed by ?

(1) Robert Hooke
(2) Robert brown and Purkinjee
(3) Leeuwenhoek
(4) Schleiden and Schwann

141. The most advanced evolutionary influorescent is found in ?

(1) Calotropis
(2) Dahlia
(3) Salvia
(4) Yucca

142. In the rice field which of the following is used as biofertilizer ?

(1) Cyanobacteria
(2) Nitrobacter
(3) Rhizobium
(4) Pseudomonas

143. Cloves are actually ?

(1) Bark of a tree
(2) Fruits
(3) Floral buds
(4) Seeds

144. Which one among the following is Nitrogen fixing organisms ?

(1) Azotobacter and Rhizobium
(2) Nitrosomonas and Azotobacter
(3) Nitrosomona and Rhizobium
(4) Nitrobacter and Rhizobium

145. Atropine used for the dilation of eyes pupil in eye testing is obtained from ?

(1) Acacia
(2) Bellodona
(3) Cinchona
(4) Neem

146. From which plant the "Turpentil oil" is extracted ?

(1) Fern
(2) Moss
(3) Pinus
(4) Sunflower

147. Saffron is obtained from which part of plants ?

(1) Leaf
(2) Stem
(3) Another and whole flower
(4) Stigma and style

148. Plants die when over fertilized because the fertilizer ?

(1) Blocks absorption of nitrogenous ions
(2) Causes dehydration of plant by exosmosis
(3) Damage the wall of delicate root hairs
(4) Increases the soil acidity

149. Which of the following is the main constituent of biogas ?

(1) Methane and carbon dioxide
(2) Methane and carbon monoxide
(3) Hydrogen and carbon dioxide
(4) Butane and carbon dioxide

150. Which one among the following is termed as "poor man's cow" ?

(1) Buffalo
(2) Goat
(3) Horse
(4) Sheep

151. From which plant listed below the maximum amount of ethanol for biofuel is obtained ?

(1) Maize
(2) Sugarcane
(3) Tapioca
(4) Wood

152. Commerciall used cotton fibre is a part of ?

(1) Embryo
(2) Fruit
(3) Seed
(4) Seed coat

153. Which one among the following is the "chemical knives (scissors)" used in generic engineering ?

(1) Endonucleases
(2) Plasmid
(3) Polymerase
(4) Ligases

154. Which one among the following is the richest source of vegetarin proteins ?

(1) Gram
(2) Rice
(3) Soyabean
(4) Wheat

155. Which one of the following fibres is not a plant product ?

(1) Cotton
(2) Flax
(3) Hemp
(4) Silk

156. Which one of the following plants is used to extract a drug from roots to cure mental disorders ?

(1) Marigold
(2) Nepenthes
(3) Rauwolfia
(4) Rccinus

157. Which one among the following aquatic weeds has been exploited for the biogas production ?

(1) Ceraphyllum
(2) Eicchornia
(3) Hydrilla
(4) Vallisneria

158. What is the purpose of the "Restiction enzymes" used in the Genetic engineering ?

(1) Cut DNA at specific base sequence
(2) Degrade harmful proteins
(3) Join different DNA fragments
(4) Restricts the protein synthesis in cells

159. Which one among the following plants is grown in rice field as a substitute of nitrogen fertilizer ?

(1) Azolla fern
(2) Cylindro spermum
(3) Zemmia
(4) All of these

160. Most of the food we consume are ?

(1) Roots
(2) Leaves
(3) Fruits
(4) Stem

161. Which one among the following organisms is used to convert cow dung into Gobar gas ?

(1) Cyanobacteria
(2) E coil
(3) Halophiles
(4) Methanogens

9 thoughts on “Scroll Content

  1. xtra ordinary site, n cmplt info availble over here..bt vil u plz update the current affairs of oct& nov as far as psbl,espcialy those r useful 4r banking..

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