Ginning refers to the separation of cotton fibre from its seeds, which is done with the help of ginning machines. 

Natural fibres are the ones, which are either obtained from a plant or an animal source. Cotton, jute, flax, etc. come from a plant source and wool comes from an animal source and is the odd one out. 

Fabric is made of yarn and yarns are further made from fibres. The fibres are obtained either from a plant source like flax, cotton, etc. or from an animal source like sheep, etc. 

Acrylic is a synthetic fibre, the source of which is neither a plant nor an animal. Cocoon is the development stage of an insect.

Cotton plant is a source of cotton yarn and bark of a tree is a source of paper.

Mufflers are made from wool fibres, gunny bags from jute fibres and towels generally from cotton             fibres. Plastic is also a type of polymer but is made up of small units of a chemical compound and not from fabric. 

Fabric is made of yarn and yarns are are made from the fibres. The fibres are obtained either from a plant source like flax, cotton etc., or from an animal source like sheep etc. So it is the flax which is the odd one. 

Option (3) is correct.

Wool fibres can be obtained from yak, sheep, goat and camel. Cat does not produce fibres. 

The source for nylon, orlon and rayon is neither plant nor animal. These are prepared artificially and synthetically, so they are known as synthetic fibres. 

Silk fibre is obtained from the cocoon of the silk moth. Pupa is also a developmental stage of the moth. Sheep is a source of wool and not silk. So it is not related to silk. 

The source of natural fibres is either plant or animal. Natural fibres are environment friendly as they do not cause pollution and are biodegradable.

The stem of jute plant is the source of jute fibres. The jute stem is immersed in water for a few days after harvesting, so that the stem may rot and fibers may be separated by hand. 

Cotton fibres are soft and not very shiny. They are used to make cotton wicks to be burnt in oil lamps, quilts etc. 

Ginning is the process of separating cotton fibres from the seeds. Weaving of the fibres is done with the handloom. Charkha is a tool used for spinning the fibres. So, all these are the correct options. But wool is an example of natural fibre and not a synthetic one, so is the incorrect option. 

The seeds of the cotton plant is the source of cotton fibres as it is all covered with cotton fibers. The seeds with fibers make the fruit of cotton plant and are generally known as cotton balls. 

The cotton seeds with fibres make up the fruit of a cotton plant.

Sheep is the source of wool fibres. The hairy fibres of the sheep along with a thin layer of skin are removed. This hair is both soft and coarse type and is known as fleece. 

Cotton plant is grown in black soil at places with warm climate.

Jute is a strong fibre obtained from jute plant and is used to make ropes, carpets and gunny bags etc. Quilt is made from cotton fibre and not from jute due to its various properties. 

Cotton plant is grown in black soil and at places with warm climate.

Cotton fibres are obtained from cotton seeds by combing and straightening out the fibres. The process is known as ginning. 

Silk is obtained from silk moth, wool from sheep, jute from jute plant, coconut from coconut plant, angora from angora sheep, fur from sheep and flax from flax plant. So the group of fibres derived from animal source only is silk, wool and fur. 

Silk fibre is obtained from the cocoon of the silk moth or the silk worm. 

The seeds of a cotton plant are the source of cotton fibres.