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121. Why do wet clothes dry more quickly on a warm day ?

A. Air carries less moisture.

B. Air can absorb moisture rather quickly.

C. High temperature of the air helps fast evaporation.

D. All the above

Explanation:

122. The setting sun often looks oval in shape because of

A. optical illusion

B. dispersion

C. refraction of rays of sun passing through the atmosphere

D. None of these

Explanation:

123. Tungsten is used for the manufacture of an electric bulb because

A. it is malleable.

B. it is inexpensive.

C. it has a very high melting point.

D. it is a good conductor.

Explanation:

124. The scientist credited with the discovery of noble gases is

A. Rutherford

B. Cavendish

C. Mac Donald

D. Madam Curie

Explanation:

125. Which of the following elements is obtained from sea weeds ?

A. Argon

B. Sulpur

C. Vanadium

D. Iodine

Explanation:

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