Which part of the Coco tree is the source of natural chocolate flavour?
What is the instrument used by doctors to hear the sound of heart and lungs?
What is the function of kidney in the human body?
Which are the four main groups of Blood?
Which metal is found in liquid form in natural stage?
DDT is used as
Name the acid used for solidifying latex?
What is laughing gas?
What is used for cutting glass?
How many electron guns are there in the picture tube of a colour TV?
Which is the instrument used for measuring the intensity of the earthquake?
Which gas has the smell of rotten eggs?
A tape recorder should not be kept near one of the following things?
In an electrical bulb the filament is made of
Soda water contains