Question # 1

The opening of air passage in the laryanx is called.

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Trachea

Bronchi

Glottis

Alveoli

The Earth's gravitational field strength is.

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1.6 N/kg

16 N/kg

10 N/kg

1N/kg

Rusting of iron takes place in the presence of.

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Moisture

O2

Both moisture and O2

Dry air

An object is attracted towards the Earth due to.

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Pull

Push

Friction

Gravity

Which of the followig features of a wave is the number of waves that pass by each second.

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Loudness

Amplitude

Frequncy

Wave speed

An example of contact force.

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Electrostatic force

Muscular force

gravity

Magnetic force

Chlorophyll is present in.

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Mesophyll cells

Upper epidermis

Lower epidermis

Endodermis

The Earth completes one revolutin around the Sun in days.

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28

29

365

370

Which of the following is used to kill germs.

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Acetic acid

Brine

Sanitizrsr

Soda

The humna circulatory system is consist of

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Heart

Blood

Blood vessels

All of these

The temerature o boiling water in centigrade scale is.

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0 oC

32 oC

37 oC

100 oC

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