MCQ
Secondary sewage tretment is mainly a:
- ✓Biological process.
- BChemical proces.
- CMechanical process.
- DPhysical proces.
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| List $I$ | List $II$ |
| $A$. Clostridium butylicum | $1$. Ethanol |
| $B$.Saccharomycescerevisiae | $II$. Streptokinase |
| $C$.Trichodermapolysporum | $III$. Butyric acid |
| $D$. Streptococcus sp. | $IV$.Cyclosporin-$A$ |
Choose the correct answer from the options given below:
| List $I$ (Interacting species) | List $II$ (Name of interaction) |
| $A$. A Leopard and a Lion in a forest/grassland | $I$. Competition |
| $B$. A Cuckoo laying egg in a Crow's nest | $II$. Brood parasitism |
| $C$. Fungi and root of a higher plant in Mycorrhizae | $III$. Mutualism |
| $D$. A cattle egret and a Cattle in a field | $IV$. Commensalism |
Choose the correct answer from the options given below.