Question

Divide the following properties into the properties of natural fibers and synthetic fibers. (4)

 These fibers are shiny and easily washable.

 These fibers are made from chemical substance.

 These fibers are made from wool, jute etc.

 Polyster is made from these fibers.

 These fibers are strong and light.

 These fibers are relatively less strong.

 Vegetable material is used to make these fibers.

 These fibers are not harmful to the environment.

(B) Classify the below given properties for unicellular organisms​

Answer 1

Answer:

1. Linen fabric is shiny, smooth, durable and easy to wash. Like cotton, it wrinkles very easily, is cool, absorbent and is suitable for summer wear. iii) Jute: Like flax jute is also a bast fibre. Maximum production of jute is in India.
2. Commonly-used chemical fibers are viscose fiber, acetate fiber, polypropylene fiber, acrylic, nylon and terylene etc. The so-called “multiple fabrics” means wall cloth made of many kinds of fibers that are blended spun with cotton.
3. The fibres of some fabrics such as cotton, jute, silk and wool are obtained from plants and animals. These are called natural fibres.

Answer 2

The properties can be divided in the following way:-

NATURAL FIBRES-

• These fibers are made from wool, jute etc.
• Vegetable material is used to make these fibers.
• These fibers are not harmful to the environment.
• These fibers are relatively less strong.

SYNTHETIC FIBRES:-

• These fibers are shiny and easily washable.

• These fibers are made from chemical substance.
• Polyster is made from these fibers.
• These fibers are strong and light.