Questions

It is a force that acts on a body moving in a circular path and is directed towards the centre around which the body is moving is called as Centripetal force.

The Chipko movement. In the 1970s, an organized resistance to the destruction of forests spread throughout India and came to be known as the Chipko movement. The name of the movement comes from the word 'embrace', as the villagers hugged the trees, and prevented the contractors' from felling them.

Revenue should be recognized when it is realized or when it is earned. When a service is performed something is earned and revenue should be recognized.

In Burning of coal, burning of wood and Heating of Potassium Chlorate there will be some sort of chemical change, but Heating of a Platinum crucible is a physical change.