Which one of the following pairs is wrongly matched?

Match the following columns:

Column-$I$	Column-$II$
$1.$ Silage	$a.$ Measure of water pollution level.
$2.$ Flocs	$b.$ Cattle feed.
$3.$ Biogas	$c.$ Bacteria associated with fungal filaments in water.
$4.$ $BOD$	$d.$ Anaerobic metabolism of organic waste.

Which of the following statements are associated with silage?
$(i)$ Prepared with the help of $Propionibacterium$ $sharmanii$.
$(ii)$ Used in the preparation of bread.
$(iii)$ It is a type of cattle feed.
$(iv)$ Used for the production of ethanol.
$(v)$ Produced by the fermentation of carbohydrates present in green plant tissues.

Match the following columns:

Column $I$	Column $II$
$1.$ $LAB$	$a.$ Quantum $-4000$
$2.$ $Propionibacterium$ $shermanii$	$b.$ Free-living $N_2$-fixer
$3.$ $Acetobacter$ $aceti$	$c.$ Lactic acid production
$4.$ $Clostridium$ $butylicum$	$d.$ Swiss cheese
$5.$ $Pseudomonas$	$e.$ Biogas
$6.$ $Azospirillum$	$f.$ Acetic acid
	$g.$ Butyric acid

Identify the correct statement.

Match the following columns:

List-$I$	List-$II$
$(a)$ Bacteria	$(1)$ Saccharomyces cerevisiae
$(b)$ Mucor	$(2)$ $Bt$ cotton
$(c)$ Yeast	$(3)$ Penicillium notatum
$(d)$ Transgenic organism	$(4)$ Lactobacillus