Absence of iodine in human body causes

Fruits contain

Which gas is used in coloured display sign boards?

Which of the following is used for killing bacteria?

A modem submarine uses which fuel?

Dialysis is taken to relieve

Who discovered the Laws of Gravitation?

In what unit is Electricity measured?

Substance which do not conduct heat or electricity is known as

Who discovered pencillin?

Bronze is an alloy of

Which is the most widely used metal?

Which disease is also known as Hansen’s diseases?

Which of these is the earliest invention?

What is the condition known as ‘tachycardia’?