Q.Fowl pox is caused by

Fowl pox is a viral disease of poultry.

Fowl pox is a slow-spreading viral disease of poultry caused by the fowl poxvirus (Avipoxvirus). It produces wart-like nodular lesions on the unfeathered skin (cutaneous form) or diphtheritic lesions in the mouth/throat, and reduces e …

Silk thread is made of the protein fibroin, so the answer is (A).

Silk is produced by the silkworm (Bombyx mori) during sericulture. The silk filament secreted by the silk glands consists mainly of the fibrous protein fibroin, which forms the core thread, cemented by a second protein, sericin (silk gum). It is fibroin that gives silk its strength and lustre.

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Ranikhet disease (Newcastle disease) is a contagious viral disease of hens/poultry.

Ranikhet disease, also known as Newcastle disease, is a highly contagious viral disease affecting poultry, including hens. It causes respiratory, nervous and digestive symptoms and heavy mortality in birds. Cholera (in the given veterinary sense) and smut are n …

Organic farming is not part of animal husbandry.

Animal husbandry is the branch of agriculture dealing with the care, breeding and management of livestock and other useful animals. Bee-keeping (apiculture), poultry farming and fish farming (pisciculture/aquaculture) all involve rearing animals for food or products, so they are parts of animal husbandry. Organic farmin …

(d) Jersey — a foreign/exotic cattle breed known for high milk yield; Gir, Sindhi and Sahiwal are all indigenous Indian breeds.

Jersey is an exotic (foreign) cattle breed.

Cattle breeds are classified as indigenous (native to India, generally hardy and disease-resistant but lower-yielding) or exotic (foreign breeds, generally high-yielding but less heat-tolerant). Gir, Sindhi (Red Sindhi) and Sahiwal are all well-known indigenous Indian dairy breeds. Jersey, originally from the Channel Islands (UK), is a clas …