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Which gas is used in fire extinguishers?

A.Oxygen

B.Hydrogen

C.Carbon dioxide

D.Nitrogen oxide

C. Carbon dioxide

CNG is preferred as fuel because it is:

Which part of the plant conducts water?

Earthquake is measured on the:

Plastics are generally:

Blood is purified in:

Which metal is liquid at room temperature?

The process of conversion of water vapour into liquid is:

Which is a communicable disease?

Speed of light is maximum in:

Rusting of iron requires:

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