Question # 1

Area around nucleus where electrons are found are called.

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Orbit

Shell

Both a and b

None of these

The quantity of matter in an object is called.

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Weight

Mass

Gravity

Friction

The Earth's pull on the objects is called.

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Gravity

Frictional force

Electrostatic force

Magnetic force

Trachea divides into two

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Bronchi

Veins

Villi

Ribs

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

The innermost layere of cortex in the root.

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Epidermis

Endodermis

Pericycle

Cambium

The main function of ......... tissue is to store food in plants.

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Xylem

Stometa

Phloem

Parenchyma

The part of the heart which receives blood from lungs.

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Left atrium

Right atrium

Left ventricle

Right ventricle

The lowest pointof a wave is................

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Crest

Amplitude

Peak

Trough

When water molecule gain a proton it form

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H+

OH-

H3O

H2O

-------------- can help certalin bacteria to attach with host cell.

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Flagella

Arm

Pili

DNA

The Earth completes one revolutin around the Sun in days.

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28

29

365

370

The weight of an object of mass 1 kg on Earth surface is

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1 N

10 N

100 N

1000 N

Which of the following is insoluble in water.

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Sodium chloride

Oil

Table salt

Baking Powder

An object produce a sound with a frequency of 50 Hz. Find its tiem period.

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0.01 sec

0.03 sec

0.02 sec

0.04 sec

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