When water is filled in a bottle and is allowed to freeze, the bottle breaks because

A: Bottle contracts at freezing point

B: Water expands on freezing

C: temperature outside the bottle is less than that inside the bott

D: E.

E: D.None of the above

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Water expands on freezing

Which Organ is affected by trachoma?

A: Lungs

B: Liver

C: Eyes

D: Brain

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Eyes

Afternoon rains in the equatorial region are the result of influences __?

A: Monsoon

B: Land Breeze

C: Frontal

D: Convectional

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Convectional

Hygrometer is used for measuring the _______?

A: Density of milk

B: Speed of sound

C: Humidity of air

D: Specific gravity of liquids

E: None of these

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Humidity of air

Spinach leaves are rich source of___

A: Iron 

B: Amino acid

C: Vitamin E

D:  Carotene

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Iron

The Saturn rings discovered by______?

A: Robert Brown

B: Newton

C: Galileo

D: None of these

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Galileo

Diamond is harder than Graphite because of______?

A: Tetrahedral structure of diamond

B: Difference in crystalline Structure

C: Difference in layer of atoms

D: None of these

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Difference in crystalline Structure

Lead ball falls through water more slowly than through air because _____?

A: Density of air is less than that of water

B: The value of 'g' is less in water

C: Of the viscous force in water

D: Of The surface tension of water

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Of the viscous force in water

Sound waves are ____ waves.

A: Electromagnetic

B: Transverse

C: Longitudinal

D: None of these

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Longitudinal

The matter of our sun is in ___ state?

A: Gas

B: Liquid

C: Solid

D: Plasma

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Plasma

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