Questions

Pidurutalagala or Mount Pedro is the highest mountain peak of which of the following countries?

Earth revolves around Sun. Who was the 1st one to present this theory?

______ is the time taken by the earth to return to a given point in its orbit with reference to a fixed star.

Air pollution level is considered to be moderate if Air Quality index between

The phenomenon of change in direction of light when it passes from one medium to another is called

A person holding a pen in his left hand sees his reflection in the mirror holding the pen in his right hand. This is due to which of the following phenomena?

An earthquake of magnitude _________________ on Richter scale has thousand times more destructive energy than an earthquake of magnitude 4.

Fruits and vegetables are good sources of