ScienceCLASS 7CBSE
answered 27 Mar 202619. Match the items of Column I with the items of Column II with reference to sewage. Column I Column 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
A.VERIFIED ANSWERfact-checked by tutors
Soln:
| 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 |