Question

Match column I with column II, and choose the correct
combination from the options given below.

	Column A		Column B
i.	Lady bird	a	$Methanobacterium$
ii.	Mycorrhizae	b	$Trichoderm$
iii.	Biological control	c	Aphids
iv.	Biogas	d	$Glomus$

• A. i ii iii iv
  b d c a
• B. i ii iii iv
  d a b c
• C. i ii iii iv
  c d b a
• D. i ii iii iv
  c b a d

Answer 1

The correct option is C i ii iii iv

c d b a
Ladybird- Aphids
Ladybird beetles are the natural enemy of aphids. It can be used to control the population of aphids.

Mycorrhizae- $Glomus$
$Glomus$ is a genus of fungi that forms a mycorrhizal association with the roots of higher plants.

Biological control- $Trichoderma$
$Trichoderma$ is a genus of filamentous fungi that is used as a biocontrol agent against soil-borne pathogens.

Biogas- $Methanobacterium$
$Methanobacterium$ present in the rumen of cattle and in cattle dung, is used in biogas production.

Final answer
(B) i ii iii iv
c d b a