Shubham lives in avillage,where drinking water facilites are very limited.they collect drinking water from a pond people also bathe and wash their clothes in that pond.he observed the most of the people are suffering from diarrhoea he advised people to use chlorine tablets in drinking water.

Answer the following questions :
(a) state the mode of transmission of this disease.
(b) state two steps that should be taken by government to check this.