Question # 1

Heat form the sun is received by the earth through:

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Conduction

Convection

Radiation

None of these

Which of the following is not an interne browser?

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Netscape

AOL

WAN

None of these

Deficiency of vitamin ___causes:

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Vitamin K

Vitamin C

Vitamin A

Vitamin D

Which device convert sound energy into electrical energy?

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Microphone

Steam engine

Electrical Motor

Loudspeaker

What range of electromagnetic radiation is used to cook food in special ovens

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Gamma

Infrared

Microwave

Ultraviolet

Who was the surgeon who operated on the patient under the influence of ether at Morton's public demonstration in 1846?

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Augustus A. Gould

Dr, R.H. Eddy

John Collin Warren

Lamarck

4 out of 40 boys failed in an examination what percent of boys failed and what percent passed the examination:

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95%

80%

96%

90%

Modulate-Demodulate is a communications device that enables a computer to transmit information over a telephone line, By what name it is popular?

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Scanner

Modem

Modulator

None of these

Anode rays sand proton were discovered by which chemist?

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E.Rutherford

E.Goldstein

J Chandwick

J J Thomson

Which substance is produced by the Haber process?

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Aluminum

Ammonium

Nitric acid

Sulfuric acid

A PPD skin test is used to diagnose which of the following?

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Tuberculosis

Syphilis

Whooping cough

Diphtheria

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