A Text Book Of Environmental Science

accident acid rain activities AIDS animals atmosphere become blood body called carrying cause cent chemical concentration concern conservation contains continue countries damage depends dioxide disease ecological economic ecosystem effects energy environment environmental essential example factors fish forest future growth habitats HIV infection Human Rights impact important increase India individual industrial infection known land lead less limits living loss major materials means million moral natural needs nitrogen nuclear occur organisms oxides period person physical plants pollution population practices present problems programme protection radiation radioactive reactor reduced region requirements result social society soil sources species sulphur sustainable development Table temperature term types United values various vegetation waste wild women