How many bones are there in a newly born infant?

The material that comes out of a volcano at the time of eruption is:

A. Solid, liquid, gaseous
B. Solid and liquid
C. Solid and gaseous
D. None of these

Which of these is NOT a form of energy?A. Heat
B. Light
C. Temperature
D. Electricity

Temperature is the degree or intensity of heat present in a substance or object. Thus temperature is not a form of energy. Whereas others are forms of energy which can be converted form one form to another.

 

Parsec is a unit of ___________?

A. Energy
B. Time
C. Power
D. Distance
E. None of these

Defeciency of following vitamin decreases hemoglobin production ?

A. Biotin
B. Thiamine
C. Niacin
D. Pyridoxine
E. None of these

Which gas is used to extinguish fire?

A. Nitrous Oxide
B. Methane
C. Carbon Dioxide
D. Carbon Dioxide & Nitrous Oxide

Carbon dioxide (CO2) is used in some hand-held extinguishers and in fixed systems to displace oxygen and smother the fire. CO2 is used in some dry chemical (powder) hand-held and wheeled extinguishers as a propellant to expel the agent (dry chemical) which, through a chemical reaction, extinguishes the fire.

Which metallic element is liquid at room temperature?

A. Zinc
B. Nickel
C. Lead
D. Mercury