Read the given passage carefully and answer the questions that follow :
Water Pollution
Water pollution is a source of various water-borne diseases. The
diseases commonly caused due to contaminated water are diarrhoea,
intestinal worms, hepatitis, etc. The World Health Organization shows
that about one-fourth of the communicable diseases in India are
water-borne. Though river pollution is common to all rivers, yet pollution
of the river Ganga flowing through one of the most populous regions of
India has caused great concerns among all. To improve the condition of
the river, National Mission for Clean Ganga was initiated. The
Namami Gange Programme has been launched for the same.