From which plant, the insecticide pyrethrum is prepared?
In DC generator, when the electricity produced in armature, resulted in
Newton’s first law is also called as
Law of Inertia
When a ship enters the sea from a river what will be the effect?
It Rises a Little
The measurement of hotness or coldness of a body is called
Which kind of mirror is used to make periscopes?
Electric current in a metal wire is due to the flow of what?
The acid is gastric juice is which kind of acid?
Name two water soluble vitamins?
Vitamin-B and C
Which type of sound waves cannot be heard by human ear?
What is the percentage of hydrocarbon in natural gas?
Who is regarded as ‘Father of Botany’?
In case of reflection, it is well known that when a mirror turned through an angle the reflected ray turns through
Twice the Angle
Which animal’s zoological name is Bos indicus?
The mirror used by the dentists to see the teeth of patients is
The ‘xylem’ in plants is responsible mainly for
Transportation of Water
What is responsible for formation of stone in human kidney?
‘Bauxite’ is an ore of
A person with vision defect ‘Myopia’ can see
Nearby Objects Clearly
Energy flow in biosphere ecosystem is
Which part of Cinchona yields a drug?
An organism that transmits disease from one individual to another is called
Hydraulic brakes work on the principle of
Who invented the mobile phone?