Mukund

  Ironstone  main part of earth.It is around two thirds of total mass.  It is mainly responsible for life on earth.It gets charged with the atmospheric energy. As it contains iron it gets magnetised.Magnetised earth attracts more atmospheric charges. And it continues to get charged.  Life on the earth always depends on charged earth. Biological structure depends upon geological structure beneth.

Effluent treatment or sewage treatment is necessary.   These treatment is simple most of the times. Industries and hospitals produce more hazordous Effluents.  These Effluents should be treated and neutrilized for hazordous substance. Otherwise It gets into rainwater.