synthetic fibres are stronger than natural fibres
synthetic fibres are more durable than natural fibres.
• Synthetic fibres are less expensive and readily available.
• synthetic fibres are more durable: They have resistance to ware and tear .Due to this, clothes made of synthetic fibres are very durable.
• The clothes made of synthetic fibres are not suitable for wearing during hot summer weather.
• Synthetic fibres absorb very light water
1 wild silk
2.true(terry can also be made from silk,cotton,linen)
1.gunny sac/burlap bag
nylon is the answer
Hope this will help you❤
1) Squeezing of a plastic bottle changes the shape of the bottle.
Deformation of clay by pressing it between the hands.
2) Pressure= Force/Area
So, P= 35/7 which is equal to 5N per square meter.
3) (i) Food
4) Thermosetting Plastic or Polythene.
5) Synthetic fibers are made from synthesized polymers of small molecules.
6) There are four types of Synthetic fibres, namely:
7) The advantages of Plastics:
It is durable, low cost, water resistant and are light weight.
Disadvantages of Plastics are:
They pollute our environment.
They pose a danger to wildlife.
They do not degrade quickly.
Lesser energy and heavy chemicals requirements in manufacture
10) Rhizobia bacteria convert nitrogen gas (N2) to ammonia (NH3) in a process called nitrogen fixation.
1. the food is life is like a health
2.A substance which has a molecular structure bulid up chiefly or completely froma large number of similar units bonded together.
3.Rayon and nylon
6.They do not able to absorb water as they are waterproof.
7.Synthetic fibre catch fire easily.
8.Polyvinyl chloride and polyethylene terephthalate
1)It is from natural resource.
2)It does not catch fire easily.
3)Natural fibres are renewable.
4)lower pollution levels during production.
1)Absorbs a lot of moisture resulting in swelling of fibers.
2)They have less strength particularly the impact properties.
3)These fibers shrink.
4)They fade faster loosing color.
5)These fibers absorb a lot of water.
when girls reach in puberty there is hormones changing and sexual , mentalactual start taking place