Choose the correct matching set from the following.
List I List II
A $A z o s p i r i l l u m$ and $A z o t o b a c t e r$ 1 Free living nitrogen fixing bacteria
B $G l o m u s$ 2 Biological control tools
C $A n a b a e n a$ and $N o s t o c$ 3 Forms mycorrhiza
D $N u c l e o p o l y h e d r o$ $v i r u s$ 4 Symbiotic cyanobacteria

A- 1, B- 3, C- 4, D- 2

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A- 2, B- 3, C- 4, D- 1

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A- 3, B- 4, C- 2, D- 1

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A- 4, B- 2, C- 3, D- 1

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Solution

The correct option is A A- 1, B- 3, C- 4, D- 2
Free living nitrogen‐fixing bacteria belonging to the genus Azotobacter and Azospirillum have been used as nitrogenous fertilizers in some crops, such as tomatoes, potatoes and sugar beets, resulting in a substantial increase in yield after a short period of time. Strains ofAzotobacter (vinelandii and chroococcum) and Azospirillwn brasilense are extremely efficient as N₂‐fixing bacteria.
Glomus is a genus of arbuscular mycorrhizal (AM) fungi, and all species form symbiotic relationships (mycorrhiza) with plant roots.
Free-living, nitrogen-fixing cyanobacteri are Anabaena and Nostoc.
The nuclear polyhedrosis virus (NPV) which belongs to the family Baculoviruses is a virus affecting insects, predominantly moths and butterflies. It has been used as a pesticide for crops infested by insects susceptible to contraction. Though commercialization of the viral pesticide is slow as the virus is very species specific, making it effective under certain circumstances.

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Q. Match the items in column I with items in column II and choose the correct answer
(A) A - 4, B - 3, C - 1, D - 2
(B) A - 2, B - 3, C - 4, D - 1
(C) A - 3, B - 4, C - 1, D - 2
(D) A - 4, B - 1, C - 2, D - 3
Column I

Column II

Q. Match list I with list II and choose the correct answer:

\begin{matrix} A . & H y p o t h a l a m u s & 1. & S p e r m l y s i n s B . & A c r o s o m e & 2. & E s t r o g e n C . & G r a a f i a n f o l l i c l e & 3. & R e l a x i n D . & L e y d i g c e l l s & 4. & G n R H E . & P a r t u r i t i o n & 5. & T e s t o s t e r o n e \end{matrix}

Q. Consider the four processes

A, B, C, D

shown in the graph given below

List I shows process & List II gives value of index

^{'} n^{'}

for the equation

P V^{n} = const

Match List I with list II.

\begin{matrix} List I & List II A . & A & 1. & 0 B & B & 2 & 1 C & C & 3. & 1.4 D & D & 4. & \infty \end{matrix}

Match List-I with List-II and select the correct answer using the codes given below the lists.

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	List I		List II
A	$A z o s p i r i l l u m$ and $A z o t o b a c t e r$	1	Free living nitrogen fixing bacteria
B	$G l o m u s$	2	Biological control tools
C	$A n a b a e n a$ and $N o s t o c$	3	Forms mycorrhiza
D	$N u c l e o p o l y h e d r o$ $v i r u s$	4	Symbiotic cyanobacteria

Choose the correct matching set from the following. List I List II A Azospirillum and Azotobacter 1 Free living nitrogen fixing bacteria B Glomus 2 Biological control tools C Anabaena and Nostoc 3 Forms mycorrhiza D Nucleopolyhedro virus 4 Symbiotic cyanobacteria