what is plastic ? advantages,disadvantages,what can be used instead of plastic,conclusion
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Answers
Explanation:
what is plastic:Plastics are organic materials, just like wood or wool. ... The raw materials used to produce plastics are natural products such as cellulose, coal, natural gas, salt and, of course, crude oil. The term ''plastic'' is derived from the Greek word ''plastikos'', meaning fit for moulding.
The advantages of plastics: It is durable, low cost, water resistant, lesser energy and heavy chemicals requirements in manufacture and are light weight. Many studies comparing plastic versus paper for shopping bags show that plastic bags have less net environmental effect than paper bags, requiring less energy to produce, transport and recycle; however these studies also note that recycling rates for plastic are significantly lower than for paper.Plastic carrier bags can be reused as trash bags or bin bags. Also, plastic bags are complimentary in many locations but are charged or "taxed" in others.
The disadvantages of plastics: Plastics bags are make of a non-renewable resource, which gives us more reasons to use recyclable shopping bags. Plastic bags are also flimsy and do not sit as well as either paper or cloth. They are a hazard to wildlife animals, if they are not disposed properly. Lastly, plastic bags clogs roadside drains, which could cause the flooding of the street at heavy rainfalls.
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PLASTIC
*Plastics are organic materials, just like wood or wool. ... *Plastics is the term commonly used to describe a wide range of synthetic or semi-synthetic materials that are used in a huge and growing range of applications.
*Plastics are made from natural materials such as cellulose, coal, natural gas, salt and crude oil through a polymerisation or polycondensation process.
*Plasticity is the general property of all materials which can deform irreversibly without breaking but, in the class of moldable polymers
ADVANTAGES OF PLASTIC
*Plastics are strong yet lightweight, and so they are easy to transport & manoeuvre.
*They are durable, knock-and scratch resistant with excellent weatherability.
* They do not rot or corrode.
*Plastics are easy to install; many have a snap-fit kind of jointing procedures.
DISADVANTAGES OF PLASTIC
* Plastic bags thrown carelessly on roads get into drains and the sewer system and choke them. ...
*Plastics give out harmful gases upon heating or burning which causes air pollution and many health problems.
*Plastic bags filled with garbage is thrown away in the open.
* plastics bags may be eaten by animals that block their lungs
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