Depending upon the nature of pollutant, how can the pollution be classified into different types ?

How can water pollution be controlled?

Types of Pollutants

Noise pollution can cause

Explain how air pollution can be minimised.

Sythetic detergrents have advantage over usual soaps as far as cleansing power is concerned. But use of synthetic detergents over a long time creates enviormental pollution. How can the pollution caused by synthetic detergents be minimised ? Classify the detergents according to their chemical nature.

When heated in excess of air, alkali metals form different types of oxides depending upon the nature of the metal. Which of the following alkali metals form surperoxides ?