1 Fresh fruits and food contain more of
2 In the body salt is stored up in the
3 The best remedy for a person who works for long hours together on desk and get exhausted is to
Take a long walk
4 The capillaries are tiny vessels that carry blood from
Veins to Arteries
5 When we cut our nails short, we do not feel the pain or hurt. This is because nails are
A horn-like material
6 Why do we laugh?
To express our feelings
7 Which is the fastest four legged animal?
8 What is the name of the bird that can stay still in the air by side of a flower and searches its food of nectar and insects in it?
9 Fish breathe through
10 If seeds, rather than grafts, are used to develop an apple orchard, the prospect of for a profitable crop
11 A radio station broadcasts at 30 meter band. The frequency of electromagnetic waves transmitted from this station could be
12 An iron ball and a wooden ball of the same radius are released from the same height in vacuum. The time taken by both the balls to reach the ground are
13 Man’s chief competitors for available food supply are
14 Hawks are valuable because they
15 In some leaves the outer most layer secrets a continuous waxy layer called
16 In leaves the outermost layer is called
17 A photoelectric cell converts
Light energy into electric energy
18 The image formed on the retina of the eye is
Real and inverted
19 Vampire bats are the bats that eat
20 In a honeybee colony, what category of bee is the drone?
A male bee, non-working
21 Why do migratory birds go back in the next spring?
Breeding instinct with change in climate
22 Which constituent of the blood carries food materials to all tissues of the body?
23 What is an instinct?
An immature action
24 How many muscles does a human body have?
25 Why is rest necessary after a good deal of exercise or work?
To neutralize poison that is produced during exercise or work
26 The nerves that carry impulses form the brain are called
27 What is a Whale?
28 The sky over the earth in fact looks
29 Can there be light without heat?
30 One of the sources of the light without heat is
31 Lungs are part of the
32 Kidney are part of the
33 Uranium is a
Soft grey metal
34 The commercial importance of Uranium is
Its explosive property
35 Silkworm is a
36 Silk is obtained from
37 What is a quarry?
An open pit dug in the ground to take out the rock and sand with ease
38 The planet between Earth and Mercury is
39 How many planets of our Solar System have no satellites?
40 The Two planets of our Solar System that do not have satellites are
Mercury and Venus
41 A small green insect that sucks plant juice is the
42 The velocity of sound is largest in
43 After birth it is believed that the body is no longer able to form
44 The organic nutrient with the highest calorific value is
45 The first Atomic Bomb contained two pieces of
46 The most important aspect of photosynthesis is considered to be the
Conversion of radian energy into chemical energy
47 A sextant is used to measure
The height of an object
48 As the amount of water vapours in the air increases the rate at which plant transpire usually
49 The live Polio Vaccine, which can be taken by mouth, was developed by
50 Cola seeds contain quantities of
51 A person sitting in a train moving with uniform velocity tossed a coin vertically up. The coin will fall
Back to his hands
52 Glass and plastics are
Poor heat conductors
53 Liquids are
Poor conductor of heat
54 The path of the earth around the sun is called
55 Scientifically speaking, rust that an iron gets, is
56 The dense veil of fog that major cities have at night and early morning is called
57 Frost, generally, is not formed at cloudy nights because
Clouds prevent radiation and therefore help the ground temperature remained higher
58 Lightning is caused when
Opposite charges in different clouds break down the resistance offered by the intervening air
59 The zigzag pattern of lightning is due to
The least resistance of the atmosphere to the charge particles
60 Most perfumes, dyes and drugs are obtained from
61 If water is to be used in simple barometer, the water column would have to be
10.3 meter long
62 Which is used in the measurement of high temperature?
63 Liver, milk, egg yolk, fish liver oil are the source of
64 Coronary heart diseases is most often found in persons suffering from
High blood pressure
65 As person becomes older, his/her blood pressure generally
66 Chemical compounds, proteins in nature, made in the cells of living organisms are called
67 Sound waves above 20,000 MHz are called
68 As a metal rod increases in length due to heating, its diameter
69 Light waves are
70 Which of the following is Vector Quantity?
Electric field intensity
71 As a balloon is filled with Carbon Dioxide, the buoyant force of the air outside the balloon
72 Roentgen rays are
73 Light is
A form of energy
74 An object that reflect light of all wavelengths appears
75 An object that absorb light if all wavelengths appears
76 Comparing to air, sound waves in water travels
77 What is an echo?
A sound repeated by reflection
78 The scientist that did some experiments with gravity first of all was
79 Scientifically speaking, all motions are
80 A Mercury is a
Metal but is present in liquid form at room temperature
81 A Mercury is
Very sensitive to temperature variation
82 Kinetic energy is the energy that is produced by the fact of
Any movement of an object
83 The colour of Emerald is
84 Diamond is the
Hardest known substance
85 Raw cotton, jute and linen are almost pure
86 The Thymus gland is related to
87 We get hungry when
Blood gets short of some nutrients
88 A Whale is
A warm blooded creature
89 A clear sky is blue because
Blue light scattered more than red
90 Thrombosis is a disease of the
91 The tough non-elastic, fibrous coat around the eyeball is called
92 The discovery of electrons is credited to
93 Which one of the following substances is a product of digestion of proteins?
94 A disease in which blood does not clot readily is called
95 Colour of thin films result from
Interference of light
96 Unequal expansions of metals make possible the operation
97 A cloud may form when moist air rises because
The air is cooled to its dew point or below
98 What act as a catalyst in the rusting of iron?
99 Whale, the largest sea-animal breathes through
100 The planet nearest to the sun is