Term

renewable resources

Definition

- abundant in nature - nonpolluting - reusable - cheap - can be found anywhere

Term

non- renewable resources

Definition

- limited in nature - pollute the atmosphere - can be used once, and is lost forever after - expensive as there is a limited quantity - occurs in fixed locations

Term

generation of hydroelectricity

Definition

Water at a height falls on a turbine, turning it. The kinetic energy of water is converted into mechanical energy. generator connected to the turbine by gears and shafts converst the mechanical energy to electricity.