Answer : D
Explanation
Centripetal force a force that acts on a body moving in a circular path and is directed towards the centre around which the body is moving..
Centripetal force a force that acts on a body moving in a circular path and is directed towards the centre around which the body is moving..
The motion of the earth around the sun is circular motion.
A barometer is a scientific instrument used to measure air pressure.
An altimeter or an altitude meter is an instrument used to measure the altitude of an object above a fixed level.
Hydrogen bomb was invented by Edward Teller.