synthetic fibres and plastics part(4) in hindi | ch3 class8 science ncert by mystery of science.

synthetic fibres and plastics part(4) in hindi | ch3 class8 science by mystery of science.

synthetic fibres and plastics jo class 8 ch 3 science ncert ka chapter hai jo kaafi easy chapter hai.. so guys aap is video ko kaafi carefull hokar ke sune and kuch naya sikhe...

now, humlog kuch important notes ko dekhte hai:-
▶Fire-proof plastics:-
Although synthetic fibre catches fire easily, it is interesting to know that the uniforms of firemen have coating of melamine plastic to make them flame resistant.
▶3.6 plastics and the environment
▶A material which gets decomposed through natural processes, such as action by bacteria, is called biodegradable.
▶A material which is not easily decomposed by natural processes is termed non-biodegradable.
▶Since plastic takes several years to decompose, it is not environment friendly.
▶It causes environmental pollution.
▶Besides, the burning process in the synthetic material is quite slow and it does not get completely burnt easily.
▶In the process it releases lots of poisonous fumes into the atmosphere causing air pollution.
▶Avoid the use of plastics as far as possible.
▶Make use of bags made of cotton or jute when you go for shopping.
▶The biodegradable and nonbiodegradable wastes should be collected separately and disposed off separately.
▶It is better to recycle plastic waste.
▶Most of the thermoplastics can be recycled.
▶As a responsible citizen remember the 5 R principle.
▶Reduce, reuse, recycle, recover and refuse.
Do not throw plastic bags in the water bodies or on the road.
▶Take a cotton carry bag or a jute bag while going for shopping.
▶Try to minimise the use of plastic materials e.g., Use a steel lunch box instead of a plastic one.
thankyou--

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