A Marsupial is a mammal which has :
Ampere is the unit of :
For measuring the depth of ocean, the instrument used is called :
Dry ice is :
Arterial blood pressure is measured by :
The effects of hormones on the body is :
A plant with green leaves placed in red light will appear:
Who said, “A body will remain at rest unless an external force act on the body” ?
The oil in which an oil lamp rises up due to :
An echo is produced by the —–––––– of sound waves.
Coating of iron with zinc is known as :
In diesel engine, ignition takes place by :
Which of the following metal is used in aircraft ?
A fuse wire is used to :
A sudden fall in the barometer indicates