Question # 1

Which blood cells protect our body from pathogens.

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Platelets

RCBs

WBCs

None of these

The contraction of the objects on cooling is due to.

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Reduction in size of the particles

Increase in size of the particles

Increase in inter particles distances

Decrease in inter particle distances

Right atrium receives.

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Oxgynated blood

Deoxygenated blood

BOth types of blood

no blood

The weight of an object on Earth's sufrace is 600 N, What will be its weight on the Moon's surface.

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600 N

300 N

100 N

200 N

Chemical bond between N2 Molecule is

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Ionic

Single covalent

Double covalent

Triple vocalent

Is the application of scientific knowledge in daily life.

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Irrigation

Salt formation

Brine

Technology

Which is nto used in the preparation of lemon pickle.

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Lemon

Sugar

Tea leaves

Acetic Acid

Value of g on moon is

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1.6 N/kg

16 N /kg

10 N/g

1 N/kg

The structure in plants used to produce food for plant is.

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Stem

Root

Branch

Leaf

Whcih of the following has double covalent bound.

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Br2

CO2

HCl

N2

The flat green part of leaf is called.

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Blade

Lamina

Both a and b

None of these

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