Explanation:


Wool and silk are two natural fibers that are obtained from animals. Here's how they are obtained:

Wool:


Wool is obtained from the fleece of sheep or lamb. The process of obtaining wool from sheep involves the following steps:

- Shearing: The first step is to shear the wool from the sheep. This is done by using shears or electric clippers to remove the fleece from the sheep's body.

- Sorting: Once the fleece is removed, it is sorted according to its quality. The wool is classified according to its fineness, length, and color.

- Cleaning: The wool is then cleaned to remove any dirt, grease, or other impurities. This is done by washing the wool in hot water and using a mild detergent.

- Spinning: After the wool is cleaned, it is spun into yarn. This is done by twisting the fibers together to form a strong, durable thread.

Silk:


Silk is obtained from the cocoons of silkworms. The process of obtaining silk involves the following steps:

- Sericulture: Silk production begins with the cultivation of silkworms. The silkworms are fed with mulberry leaves and allowed to spin their cocoons.

- Harvesting: After the silkworms have spun their cocoons, the cocoons are harvested. This is done by boiling the cocoons to kill the silkworms inside and to loosen the silk fibers.

- Reeling: Once the cocoons are harvested, the silk fibers are reeled from the cocoons. This is done by unwinding the silk fibers from the cocoons and twisting them together to form a strong, durable thread.

Therefore, wool and silk are obtained from animals and not from plants, chemicals or organic matter.