Question

Match the column
(P)Scouring (A)Cleaning sheared skin
(Q)Mulberry leaves (B)Food of silkworm
(R) Yak
(C)Yields silk fibres
(S) Cocoon (D)Wool yielding animal​

Answer 1

Answer:

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Answer 2

Answer:

(A)Cleaning sheared skin     (P)Scouring

(B)Food of silkworm             (Q)Mulberry leaves

(C)Yields silk fibres               (S) Cocoon

(D)Wool yielding animal​        (R) Yak

Explanation:

1. Scouring: - The process is done in order to remove soil, vegetable impurities, grease, and other contaminants from fibres (particularly wool), scouring is a process that uses hot water and detergents. Although using an organic solvent is also an option, water and alkali are commonly used for scouring wool. Alkali scouring dissolves natural oils and surfactants and causes contaminants to float to the surface of the bath. The scouring wastewater has a high alkaline content.

2. Food of silkworms: - The main source of nutrition for silkworms is mulberry leaves. In addition to being cultivated to maintain silkworm farms, mulberry trees do occur naturally. The leaves of the majority of the 200 species of mulberry trees, which have leaves, are consumed by silkworms.

3. Cocoon ( yields silk fibres ): - the covering that a silkworm's caterpillars create before changing into a pupa; the source of natural silk. The mulberry silkworm's cocoons are the most valuable commercially, although other silkworms' cocoons are also used, including those from Chinese oak and ailanthus. These silkworm caterpillars secrete a double silk thread that is made up of the protein fibroin, the sticky component sericin, pigment, and additional materials.

4. Yak ( Wool yielding animal ): - The animal is suited to adverse weather conditions and is native to the Himalayas, Mongolia, and southern Siberia. This is especially seen in its shaggy winter coat, which is unique in the entire world:

• The yak's coat has several layers.

• Very fine wool goods are typically made from the initial layer of fur that is directly on the skin.

• Transition wool that is more coarse makes up the second layer.

• The solid topcoat is the third layer, which is located extremely outside.

• The three layers make the yak resistant to extremely cold temperatures.