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| Column-$I$ | Column-$II$ |
| $(a)$ Flocs | $(1)$ Biocontrol agent |
| $(b)$ Methanobacterium | $(2)$ Biological treatment |
| $(c)$ Ladybird | $(3)$ Biofertilizer |
| $(d)$ Cyanobacteria | $(4)$ Biogas production |
| Column-$I$ | Column-$II$ |
|---|---|
| $(a)$ Ladybird | $(1)$ Methanobacterium |
| $(b)$ Mycorrhiza | $(2)$ Trichoderma |
| $(c)$ Biocontrol | $(3)$ Aphids |
| $(d)$ Biogas | $(4)$ Glomus |
| Column-$I$ | Column-$II$ |
| $1$. $Propionibacterium$ $shermanii$ | $A$. Production of ethanol from fruit juice |
| $2$. $Saccharomyces$ $cerevisiae$ | $B$. Citric Acid |
| $3$. $Aspergillus$ $niger$ | $C$. 'Swiss Cheese' |
| $4$. $Trichoderma$ $polysporum$ | $D$. Immunosuppressive agent |
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