Question # 1

The outer surface of kidney

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Convex

Concave

Oval

Circular

Speed of light through water is about.

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300000 km/s

250000 km/s

225000 km /s

200000 km/s

The poisonous and harmsful substances which make the air unfavorable for life are called.

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Solid pollutant

Air pollutant

Water pollutant

Acid Rain

The unit of electric power is

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Ampere

Joule

Volt

Watt

In humna body spinal nerves have pairs.

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12

13

31

32

The basic particle of an element is called.

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Compound

Mixture

Atom

None of these

During respiration by the animals, whihc gas is released into the atmosphere.

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Nitrogen

Oxygen

Carbon Di oxide

Hydrogen

Unit of Pressure is

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Joule

Newton

Nm2

Nm-2

It is made up of interneurons.

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Spinal cord

PNS

CNS

Medulla oblongata.

Which of the following is non-magnetic substace

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iron

Steel

Silver

Nickel

What is true formula.

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Densit = Mass x volume

Density = Mass/volume

Volume =Mass x volume

Density = volume/Mass

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