Question # 1

The opening of air passage in the laryanx is called.

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Trachea

Bronchi

Glottis

Alveoli

Which of the following is used to kill germs.

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Acetic acid

Brine

Sanitizrsr

Soda

A gas produced on heating solid potassium chlorate is.

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Hydrogen

Carbon dioxide

Oxygen

Methane

Irrigation means.

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Supply of waer to land crop

Supply of nutrients

Live stock

Farming

Chemical bond teh forms between metallic and non-metallic atoms.

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Covalent

Ionic

Metalic

None of these

The rise of liquid in the thermomeer is due to.

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Evaporation

Contraction

Expansion

Sublimation

Hydrochloric acid is found in.

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Salavia

Pancreatic juice

Bile

Gastric juice

Which one of the following statements is correct.

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1 m = 1000 km

m/s is the unit of displacement.

N is the unit of force

1 h = 60 s

an example of non-contact force is

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Magnetic force

Crane lifting heavy object

Frictional force

A tug of war

Which of the following has stble elecronic configuration.

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H

He

C

Li

Which blood vessesl have valves in it.

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Capillaries

Artery

Vein

Arteriole

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