Learn Life Science Online - Animal Cell, Cytology, Human Disease online

Sunday, March 01, 2009

Previous Year CSIR NET Life Science Question Paper Questions

Previous Year CSIR Life Science Question Paper Questions


Correct statement regarding the effect of ozone on biosphere is

a. Both atmospheric and stratospheric ozone is beneficial

b. Both atmospheric and stratospheric ozone is harmful

c. Atmospheric ozone is harmful but stratospheric ozone is beneficial

d. Atmospheric ozone is beneficial but stratospheric ozone is harmful