1. The Supersonic jets tend to cause

2. Different notes are produced by a flute by

3. The bats can fly in the dark because

4. Which of the following metals is used in the electromagnets?

5. A ball bounces higher at high altitudes than in plains. This is because

6. An ordinary clock loses time in summer. This is because

7. BCG vaccination is to be given to a new born child

8. The growth of seedling plants after transplantation will not always be proper because

9. When light enters a closed room through a small hole in the door, the image of an outside building appears as inverted on the opposite wall. This is because

10. Carbohydrates, proteins and vitamins which are responsible for energy, growth and vitality are obtained respectively from

11. Decomposition of organic matter is due to

12. When a man circles round the earth in a satellite, then

13. Gobar gas contains mainly

14. The content of water is greater than fats, the plasma is more than proteins, proteins are more than fats and fats less than plasma. Which constitutes the major Part of the human body?

15. Dialysis is used for a patient suffering from

16. Pulse reading is done by doctors to find out

17. After how many days rash appears on the body after the attack of Measles?

18. The Vitamin responsible for anti-sterile activity is

19. The water in an open pond remains cool even in hot summer because

20. You are travelling in a car and a thunder storm suddenly takes place. What will be your first step?

21. If a large number of people are enclosed in a room, then

22. It is not advisable to sleep under a tree at night because of the

23. Higher plants take up Nitrogen as

24. Green plants in the sea are useful for the respiration of fish because

25. Stripes on the back of the animals are the indication of

26. Which of the following is a balanced fertiliser for plants?

27. Which of the following is not immunised by ‘Triple Antigen’?

28. Milk fever in cows occurs due to the lack of

29. After hatching by the hen, the young chicks come out of eggs within

30. Which one of the following is a fast growing tree?

31. Decrease in white blood cells results in

32. In India people suffer from Anaemia due to lack of

33. Reserprine derived from the plant ‘Serpentina’ is used to

34. In India it is found recently that incidence of Malaria is increasing because

35. Mouth and foot diseases in cattle are caused due to

36. A body partially floats in wafer when

37. Permanent hardness of water cannot be removed by

38. In summer, man with excess perspiration feels weak, because of the

39. The two branches of a plant give two different fruits : tomatoes and brinjals. This can be explained

40. The density of seawater is highest as

41. The function of the liver is to

42. The temperature for pasteurisation of milk is selected so as to

43. What is the most important factor for the growth of pests in stored grains?

44. Which of the following can be said as the “Theory of Darwin”

45. In high mountain regions bleeding through nose occurs because

46. One litre of cold air weighs heavier than the dry air (1 Lit) because of the

47. The term ‘Test Tube Baby’ implies

48. Range of Television Broadcasting is confined to a limited distance because

49. Another name of Vitamin C is

50. Unit of distance used in navigation is

51. What type of mirror is used by motorists to see the road behind them?

52. The escape velocity from the earth’s surface is about

53. The chief constituent of gobar gas is

54. The radiant energy of the sun is due to

55. In microphone, transformation of energy takes place from

56. Fuel used in a nuclear reactor is

57. The heater element in an electric iron is made of

58. Dialysis is used for a patient suffering from

59. Green colour of plants is due to the presence of

60. Dry ice is

61. Neil Armstrong was the first person to reach on the moon. While walking on the moon

62. Distance of stars is measured in

63. The deficiency of Vitamin D causes

64. Isotopes of the same element differ in the number of

65. Stainless steel contains which of the following?

66. During processing and cooking which part of food is mostly destroyed?

67. When iron rusts, the weight

68. What is mainly obtained from bauxite?

69. Which one of the following is secreted by Pancreas and regulates the amount of sugar in the body

70. Which substance is commonly used in refrigerators?

71. Radar is used for

72. Municipal water in India is generally treated with

73. Put the following mass communication media in the sequence in which they came to India?
1. Radio
2. Television
3. Films
4. Printing

74. Which of the following statements is correct?
Fossil I is Found in the upper layer than Fossil II

75. There are mice in the field which act as prey to snakes. Hawks eat the snakes. Some dogs are brought into the field?
What will be its effect?

76. To an astronaut in the spacecraft, the sky colour appears to be

77. What are the primary colors?

78. If water contracts on freezing, which of the following would happen?

79. When the ice floating in a glass of water melts, the level of water will

80. When a person moves from poles to the equator, the population of plants and animals will

81. What is the function of a fuse wire?

82. Why is it advisable not to draw current for many appliances from a single point?

83. Rickets is caused due to

84. Identical twins are born when

85. Conception generally takes place at the time of

86. Why mothers feed the child with Vitamin A?

87. Growing children require comparatively more

88. How the body temperature is maintained?

89. Why the countries are scared to import fruits?

90. Which of the following statements is true?

91. Which of the following is commonly resent in the acids?

92. In what sequence are the following obtained from a natural gas well?
1. Natural Gas
2. Water
3. Crude oil

93. Heart patients should avoid faking excess of

94. How dehydration helps in the preservation of food?

95. What is done to raise the dough while making bread?

96. A person with which blood group will be a universal donor?

97. Dysentery and Influenza are caused by

98. Why does man weigh more at the poles than at the equator?

99. Which organ is associated with the production of insulin in the human body?

100. Mark the correct answer

101. Why camphor disappears when kept on a plate?

102. The sex of the offspring is determined, when

103. Colour blindness is

104. What happens when alcohol is taken in excess?

105. What happens when the temperature of water falls from 30°C and 0°C?

106. The deficiency of causes goiter

107. Why is it easier to cook in a pressure cooker?

108. When the rice is boiled, it expands because

109. Flood hit areas are to be immediately given medical cover. Which of the following is the most appropriate step?

110. To an astronaut in the spacecraft, the sky appears to be

111. The rich source of iron is

112. Which among the following acts as a resistance against disease in the body?

113. A fan makes a hot noon to feel cool by

114. When a ship enters a sea from a river, its portion under water will

115. A universal donor has the blood group belonging to

116. The substance generally used in the tip of safety match stick is

117. Retina in the eyes acts as a ____ in the camera

118. Milk of the animals fed on grass contains large amounts of fat in

119. The process by which metal surface is coated with thin layer of zinc is called

120. Kilowatt is the unit of

121. Honey bees are called social insects because

122. The sun derives its energy from

123. Metals used in voltaic cell are

124. Vitamins do not act as a/an

125. Which of the following is useful in the chemistry of photography

126. Which of the following enters human body through skin

127. The dress made out of which of the following is safe to wear while cooking?

128. The purest form of water is obtained from

129. Chlorophyll is a/an

130. Health hazard floods are responsible for the spread of

131. Gasohol is mixture of gasoline and

132. Ozone present in the ozone layer of the atmosphere is important because

133. Hydroponics means

134. During cardiac failure, which of the following is advised as a first aid?

135. Pearls are formed inside

136. Diamond and Emerald contain

137. Hygrometer is used to measure

138. After sowing seeds, the fertilizers used are

139. Dehydration in the human body results due to loss of

140. Ready source of energy is available for athletes in

141. The easiest way of finding out the nutritional status for large number of children in a short time is by

142. To keep the seeds in good condition, we should keep it in a place which is

143. The chief constituent of gobar gas is

144. A radio station is to be set up in a remote village without any electrical power.
The following options are available:
A. Laying of transmission lines from power station to the village
B. Installing diesel generators
C. Using rechargeable batteries
D. Using solar panel/stills
Of these the last method is an example of

145. Turmeric is obtained from which part of the plant?

146. The process of light exposure in a 24-hour cycle that controls the growth and development of certain plants and animals is called

147. “Mach Number” is a term associated with the speed of

148. The internal antenna of a transistor set is made of

149. The common ore of aluminium is

150. In typhoid which of the following drugs is administered?

151. Amoebiasis, malaria and typhoid are diseases due to amoeba, malarial parasites and typhoid bacillus which are collectively called

152. Hypochondria is a

153. Radio carbon dating process is used to know the age of

154. Aspirin is a

155. Arrange the following fertilizers according to the decreasing order of their nitrogen content
I. Ammonium sulphate
II. Ammonium nitrate
III. Potassium nitrate
IV. Urea

156. What is the difference between an explosion and combustion?

157. Foot and mouth disease is prevalent among

158. When one enters a dark room, he is not able to see anything but after some time his vision improves. This is because

159. The messages received by and transmitted from the brain to the various parts of the body take the form of

160. Gerontology is the study of

161. Helium is used for respiration in deep water instead of nitrogen because

162. In a fluorescent tube which of the following components are found?

163. For artificial insemination the semen of a bull should be stored in

164. Which one is a high yielding variety of rice?

165. In a remote Indian village with a scarcity of fuel, the people draw water from a well. They should be advised before drinking that water to

166. Hormones which are necessary for the development of the human body are secreted by

167. The ductless and secretory glands in the human body are known as

168. Fat is stored in the human body in

169. Arrange the following in the decreasing order of their carbon content
I. Cast iron
II. Wrought iron
III. Steel

170. Assertion: Galvanised iron pipes do not rust easily.
Reason: Zinc has a higher rate of oxidation than iron.

171. Which of the following is not an alloy?

172. Chlorine is

173. The first geostationary satellite launched by India is

174. Solution of washing soda in water is

175. Which of the following discoveries is/are associated with Einstein?
(i) Theory of relativity
(ii) Quantum theory
(iii) Radio activity
(iv) Rocket propulsion

176. Select the famous agricultural scientist who was awarded Nobel Prize for Peace?

177. Chips used in integrated circuits in computers are made of

178. Why do you feel chill after having a dip in sea water?

179. Which of the following is an insecticide?

180. Which of the following diseases is spread through cows milk?

181. Mica is abundantly used in which of the following industries?

182. Arrange the following in descending order of their life spans:
A. Elephant
B. Horse
C. Tiger
D. Wolf

183. The surface of the water in a lake is frozen and its temperature is -15°C. The maximum possible temperature of the water inside the lake in contact with the ice layer will be

184. One of your friends is in hospital and you want to see him. You are safest if he is suffering from

185. A stone is tied to a rope and attached to a wooden bar which rotates at constant angular velocity. Suddenly the bar is stopped. The stone gets encircled around the bar. What happens to the angular velocity of the stone.

186. Jaundice is caused due to the malfunctioning of

187. Which is not a parasite?

188. Sex of a child is determined by the

189. The most appropriate source of energy for cooking and lighting purposes in rural India is

190. The tape of the tape-recorder is coated with

191. Taj Mahal is reported to be in danger because of

192. Silent Valley Project has been abandoned for

193. Cover of a solar cooker is made of glass. Why?

194. Which of the following groups represents the correct order of four types of teeth in human beings?

195. Which pair is correct?

196. When a brick is dropped in water, bubbles are seen to rise. This is due to

197. Triple Antigen does not immunise against

198. Which comet appears after 76 years and likely to appear in 1986?

199. Lichens is an association of two types of organisms. They are

200. What is the common feature in insects like ant and cockroach?

201. Which of the following is a perception without stimuli?

202. Sir J. C. Bose was a great scientist because he showed the

203. A person sitting in a bus experiences a jerk, when the bus stops all of a sudden. This is due to

204. Write the correct order of occurrence of the following activities while completing the construction of a house
1. Plastering
2. White-washing
3. Electrification
4. Furnishing

205. The genetic code can be translated through an intermediate, adaptor molecule by

206. Mesons are found in

207. Bile is secreted by

208. Match the following:
A. Carbohydrate 1. It constitutes oil, ghee, butter and oil seed
B. Fat 2. Animal and vegetable tissues
C. Protein 3. Excellent source of energy, constitutes starch, sugar, etc.
D. Amino acids 4. End product of protein hydrolysis

209. ‘Ranikhet’ is a disease found in

210. Which of the following statements about “Dinosaurs” is/are correct?

211. Study the frequency of the following electromagnetic radiations and select the correct relationship (‘>’ implies greater than):
I. : Infrared
II. : Microwave
III. : Ultraviolet

212. Given:
Humidity-H
High-A
Wind Velocity-W
Low-B
Temperature-T
The desert cooler is an appropriate cooling device for regions where

213. What is the tissue culture?

214. Wisdom teeth normally grow during the age of

215. Black hole is