Question # 1

Chlorophyll is present in.

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Mesophyll cells

Upper epidermis

Lower epidermis

Endodermis

There are ............ groups in periodic table.

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2

8

18

32

The numebr of electorns present in an atom s equal to number of.

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Nucleus

Neutrons

Proton

Atom

Outermost shell of sodium atom has ...... electrons.

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1

2

3

4

Which blood vessesl have valves in it.

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Capillaries

Artery

Vein

Arteriole

The middle strong vein in leaf is called.

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Blade

Petiole

Midrib

None of these

Right atrium receives.

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Oxgynated blood

Deoxygenated blood

BOth types of blood

no blood

The concentration of water in plasma is.

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55%

45%

92%

95%

The humna circulatory system is consist of

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Heart

Blood

Blood vessels

All of these

The bulb of the thermometer is filled with.

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Oil

Alcohol

Water

Salt

Which of the following is an anion.

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F

Cl

S-2

NH3

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