Match the items of column I with the items of column II with reference to sewage.
Column IColumn II
(a) Inorganic impurities(i) phosphorus and nitrogen
(b) Organic impurities(ii) nitrates and phosphates
(c) Nutrients(iii) cholera and typhoid
(d) Bacteria(iv)pesticides and herbicides

AcademicChemistryNCERTClass 7

Column I
Column II
(a) Inorganic impurities
(ii) nitrates and phosphates
(b) Organic impurities
(iv) pesticides and herbicides
(c) Nutrients
(i) phosphorus and nitrogen
(d) Bacteria
(iii) cholera and typhoid
Updated on 10-Oct-2022 13:23:31