Match Column 1 with Column 2:

A-iii, B-iv, C-ii, D-i

The correct answer is Option (2) - A-iii, B-iv, C-ii, D-i

A. Ladybird - iii. Aphids

• Ladybirds (also known as ladybugs) are predatory insects that feed on aphids, which are small sap-sucking insects. Ladybirds are considered natural biocontrol agents because they help manage aphid populations in agricultural settings, reducing the need for chemical pesticides.

B. Mycorrhiza - iv. Glomus

• Mycorrhiza refers to the symbiotic association between fungi and the roots of plants. Glomus is a genus of fungi that forms mycorrhizal associations with plant roots, enhancing the plant's nutrient absorption, particularly phosphorus, and improving overall plant health.

C. Biological control - ii. Trichoderma

• Biological control involves using natural organisms to manage pests and diseases. Trichoderma is a genus of fungi known for its ability to act as a biocontrol agent against various plant pathogens. It is commonly used in agriculture to protect crops from fungal diseases.

D. Biogas - i. Methanobacterium

• Biogas is a mixture of gases, primarily methane, produced by the anaerobic digestion of organic matter. Methanobacterium is a type of methanogenic bacterium that plays a crucial role in the production of biogas by breaking down organic material in the absence of oxygen, releasing methane as a byproduct.