The 3 Rs stand for reduce, reuse and recycle.
(a) Reduce: We need to reduce the amount of waste generated by consuming more and throwing less. For example, we can use a fountain pen in place of a ballpoint pen.
(b) Reuse: We can use certain things for more than one purpose. For example, small jars and bottles can be cleaned and reused to store kitchen stuff.
(c) Recycle: Materials such as discarded plastic and paper items should be recycled to make new things.