Match List – I with List – II.

Choose the correct answer from the options given below:

(A)-(III), (B)-(IV), (C)-(I), (D)-(II)

The correct answer is Option (1) → (A)-(III), (B)-(IV), (C)-(I), (D)-(II)

A. A biological control being developed for use in the treatment of plant disease is the fungus Trichoderma. Trichoderma species are free-living fungi that are very common in the root ecosystems. They are effective biocontrol agents of several plant pathogens.

B. Fungi are also known to form symbiotic associations with plants (mycorrhiza). Many members of the genus Glomus form mycorrhiza. The fungal symbiont in these associations absorbs phosphorus from soil and passes it to the plant. 

C. In agriculture, there is a method of controlling pests that relies on natural predation rather than introduced chemicals.The very familiar beetle with red and black markings – the Ladybird, and Dragonflies are useful to get rid of aphids and mosquitoes. Ladybird beetles, also known as ladybugs or ladybirds, are beneficial insects that feed on aphids, which are pests that can damage plants.

D. Biogas is a mixture of gases (containing predominantly methane) produced by the microbial activity and which may be used as fuel. However, certain bacteria, which grow anaerobically on cellulosic material, produce large amount of methane along with CO₂ and H₂ . These bacteria are collectively called methanogens, and one such common bacterium is Methanobacterium.