Question # 1

An alkali metal

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F

Be

Al

Na

The central nervous system is made of

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Spinal cord

Brain

All parts of body

Brain and spinal cord

Carbon dioxide is removed from the body through.

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Blood

Kidney

Lungs

Heart

Number of elements in short period is.

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2

8

16

32

The formula of find the magnitude of current is.

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I = Q/t

I = QV

I = CV

I = C/Q

Peipheral nervous system consist of

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Network of nerves

Spinal cord

Brain

PNS and CNS

Which of the following is non-magnetic substace

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iron

Steel

Silver

Nickel

Green house gases is

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Carbon di oxide

Methane

Oxides of nitrogen

All these

Law of conservation of mass put forward in.

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1783

1784

1785

1786

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

In pea, there are chromosomes.

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14

16

20

48

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