General Science MCQs Part V

71 Emission line spectrum will be obtained from

Sodium lamp

72 The Malpighian layer of the skin is

A continuous layer of the cells

73 A Vacuole has

A mixture of different substances dissolved in water

74 During the compression of the refrigerant gas in an electric refrigerator, the temperature of the gas

Increases

75 The plants that do not die after producing flower and seeds but persists season to season, though with a reduced growth during dry season are called

Perennial plants

76 The development of Electron Microscope has now made it possible to observe

A Virus

77 Mercury is used in thermometer because it

Expands uniformly

78 Excretion is the

Removal nitrogenous waste material of the body

79 The science which deals with study of fossils plants is known as

Palaeobotany

80 The illumination of the earth by the sun is greater at noon because

The rays are less brighter at noon

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