| List-I (Function) | List-II (Organism) |
| (A) Nitrogen fixation (bacterium) | (I) Saccharomyces |
| (B) Phosphorous absorption | (II) Azospirillum |
| (C) Nitrogen fixation (cyanobacterium) | (III) Glomus |
| (D) Ethanol Production | (IV) Oscillatoria |
The objective is to correctly match functions in List-I with their corresponding organisms in List-II.
Analysis of each function:
Based on the analysis, the correct pairings are: (A)-(II), (B)-(III), (C)-(IV), (D)-(I)