91 The tough non-elastic, fibrous coat around the eyeball is called

Scierotic

92 The discovery of electrons is credited to

Thomson

93 Which one of the following substances is a product of digestion of proteins?

Amino acids

94 A disease in which blood does not clot readily is called

Haemophilia

95 Colour of thin films result from

Interference of light

96 Unequal expansions of metals make possible the operation

Thermostats

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?

Moisture (water)

99 Whale, the largest sea-animal breathes through

Lungs

100 The planet nearest to the sun is

Mercury