The three $R's$ that will help us to conserve natural resources for long-term use are

Although coal and petroleum are produced by the degradation of biomass,we still need to conserve them. Why?

The important message conveyed by the 'Chipko Movement' is

Which of the following is an endangered reptile?

The main cause for abundant coliform bacteria in the river Ganga is

We often observe domestic waste decomposing in the bylanes of our homes. List four ways to make the residents aware that the improper disposal of wastes is harmful to the environment and also for their own health.