Vehicles made of lightweight plastics … Other Material Substitutes Can Be More Sustainable Than Plastic The More They Are Re-used If you look around you, you will easily get many things made up of plastics. Plastics have many disadvantages that prevent it from becoming universal building portion of modern civilization of human, and also the reason that many governments strictly take control its use.A single plastic bag can take up to 1000 years, to decay completely. By doing so you will get access to NCERT Solutions, study notes, revision notes and mock tests etc. Plastics are poor conductors: (i) Plastics are poor conductor of heat and electricity. Think plastic silverware or … Plastic is non reactive. Cheap production and easy availability make plastic very useful, but it has many shortfalls and its harmful effects are cause of huge concern for us to save our earth and ourselves. is done on EduRev Study Group by Class 8 Students. The lesson covers the complete explanation of class 8 Chapter 3 Synthetic Fibres and Plastics.Topics covered are Introduction to fibres, kinds of fibres. ADVANTAGES Plastic is very useful in the building and construction, electronics (laptops wouldn't work well if they were made from glass), packaging (gladwrap), transportation industries. Plastic bags are complimentary in many locations but are charged or "taxed" in others. Its few disadvantages are listed below –. Join now. Plastic is so cheap to make that many people even think we have too much of it. Different types of synthetic fibres like, Rayon fibres, Nylon fibres, Polyester fibres and Acrylic fibres have been explained. In the language of chemistry, plastic is an organic polymer with higher molecular mass. The Questions and From packaging to aircrafts plastic is used in almost each and every field. Plastics are malleable and can be converted into solid objects also. Sorry!, This page is not available for now to bookmark. Plastic refers to its agree to the. So those are thrown away, too. Join now. Advantages and Disadvantages of Plastic . There are hard plastics and soft plastics. Plastics have a shorter lifespan compared to metals. Plastic May Account For More Greenhouse Gases Than First Thought. You can also get complete NCERT solutions and Sample papers. Plastic materials clog waterways, oceans, seas, lakes etc. 1. Examples of thermosetting plastic are Bakelite, melamine etc. Plastic is softness. Topics: Oxygen, Plastic, Natural environment Pages: 2 (326 words) Published: September 5, 2011. Now, it’s penchant for creating inexpensive products can also be seen as a negative at times. Both creation and recycling of plastic produce toxic gases and residues which causes air and water and land pollution. This discussion on Disadvantages of plastic? Since plastics are lightweight and sturdy, they can be conveniently used to transport goods. Plastic materials clog waterways, oceans, seas, lakes etc. Some disadvantages of using plastics are that they pollute the environment, pose a danger to wildlife, do not degrade quickly and pose difficulties during recycling. These are also known as thermoset polymers. •    Plastic materials have low heat resistant and poor ductility. Discarded plastic ends up in the oceans, as evidenced in the Pacific Ocean, which contains a garbage dump the size of Texas swirling far offshore. Thermoplastics are those plastics which can be molded again and again by use of heat. Thermoplastic polymers are used in making carry bags, bottles etc. Its few disadvantages are listed below – Natural decomposition of plastic can last from 400-1000 years and few types of plastics are non-degradable as well. 1 in 3 species of marine mammals have been found entangled in marine litter. This disadvantage is one of the primary reasons why plastic is one of the most common materials found in municipal waste centers and landfills. •    Plastic bags are flimsy and not durable like paper or cloth. Plastic is widely used in packaging. Disadvantages of plastic bags are well known, this is the reason why use of  plastic bags have been restricted in most of the countries in the world. One of the biggest and the worst disadvantage of plastic is that it is non-biodegradable. soon. So why then make plastic out of food. Food crisis/ Land required for renewable resources People are starving because they don’t have enough money for food. •    The biodegradation of plastic takes 500 to 1,000 years but manufacturing takes only seconds. You can study other questions, MCQs, videos and tests for Class 8 on EduRev and even discuss your questions like See other topics from Chapter 3 Synthetic Fibres and Plastics. Apart from being the largest Class 8 community, EduRev has the largest solved which are added in plastics to prevent its structure may cause serious hormonal imbalance in males and females. Disadvantages of plastic? And it isn't only landfills that are overflowing with plastic. Examples of thermoplastics are polyethene, polystyrene and PVC (polyvinylchloride). 2)The burning of plastic gives out harmful gases which pollute the air. It can be translucent, transparent, and opaque as well. In this article we will discuss about the advantages and disadvantages of plastic. Thermoplastics: Plastics which get deformed easily on heating and can be bent easily are known as thermoplastics. All types of questions are solved for all topics. It is usually made in factories by melting the grains and poured into moulds and are synthetic. It is a poor conductor of heat and electricity. Plastics are synthetic polymers of carbon and other elements with high molecular mass. Thermosetting Plastics: Plastics which when moulded once cannot be softened by heating are called thermosetting plastics. But they are combustibility and release toxic fumes after burning. Plastic bags are also flimsy and do not sit as well as either paper or cloth. What are the Advantages and Disadvantages of Synthetic Fibres Advantages of Synthetic Fibres Synthetic fibres have the following advantages. Answers of Disadvantages of plastic? Disadvantages of plastic. Although plastic has countless uses, its environmental and health hazards are also not negligible. Plastic do not react with Air and Water. From a small pin to large machine parts, most of them are made up of plastics. Any synthetic or semi-synthetic polymers are ‘plastics’. Most fabrics made of synthetic fibres do not wrinkle easily. RD Sharma Solutions for Class 8 Mathematics. Due to its versatile properties, proliferation of plastic products has been extraordinary in the last few decades. •    They are embrittlement at low temperature and deformation at high pressure. Few of them are stated below –. Plastics used for industrial work come from petrochemicals. Synthetic Fibres and Plastics Class 8 Science Chapter 3 as per NCERT Book used in CBSE and other Schools. You will be amazed to know that in the developed countries like the United States, United Kingdom one-third of the plastic available is used for packaging, plumbing, and piping. Classification of plastics. [3] Plastic carrier bags can be reused as trash bags or bin bags. Chemicals such as phthalates and BPA are widely used as an additive that prevents degrading of plastic structure, but they also interfere with our natural hormone levels which can cause serious problems to both males and females (lower testosterone levels in men, … Eating food out of plastic containers may cause cancer. Pro Lite, CBSE Previous Year Question Paper for Class 10, CBSE Previous Year Question Paper for Class 12. Example - Chairs and buckets are made up of plastics. The problem with this fact is that plastic takes 1000s of years to breakdown and it is accumulating in our oceans and harming the marine life. joynitha1220 joynitha1220 24.10.2018 Physics Secondary School Advantages and disadvantages of plastic for class 8 1 See answer By continuing, I agree that I am at least 13 years old and have read and It is a fact that almost 9-10 million tons of plastic are dumped in our oceans every year which affect marine ecology adversely. Few additives such as phthalates etc. Many of these have not undergone environmental risk assessment and their impact on human health and the … EduRev is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. Thermosetting plastics are used in making handles of utensils, switches and fire-resistant fabric etc. Synthetic Fibres. Question bank for Class 8. These are the current advantages and disadvantages of biodegradable plastics to review. •    The recycling of plastic is not cost effective process and even more expensive compare to its manufacturing. The improper disposal of plastic can cause hazard to wildlife as they are not readily biodegradable. Pro Subscription, JEE Plastics are widely used in making electical instruments, telephones, panelling for walls,instrument boards, automoblile parts, lamps, googles, optical instruments, household appliances, etc. They are a hazard to wildlife animals, if they are not disposed properly. over here on EduRev! Plastic Straws get stuck in … Many animals eat plastic materials and die. Plastics are broadly classified into two categories, namely thermoplastic and thermosetting plastic. If the answer is not available please wait for a while and a community member will probably answer this Disadvantages of Plastics are 1. Advantages and Disadvantages of Plastic Full Essay in Points Disadvantages of Plastic. It takes a long time for plastic products to decompose. The use of plastics poses a threat to the environment. Most synthetic fibres have good elasticity. Main & Advanced Repeaters, Vedantu •    Plastic materials like plastic bags are mostly end up as harmful waste in landfill which may pollute the environment and threatening our health. Plastic takes a long time to degrade when compared to organic items. It is used in boxes, packaging, carry bags, switches, utensils, electrical wires, fire resistant fabric etc. •    The raw material for manufacturing of plastic bags is petrochemicals which are non-renewable resource. •    Plastic is a soft, non-renewable resources which cannot be used for some crucial applications. Log in. Flammable – This is definitely an advantage in that they can be melted down, however smoldering plastics can release toxic fumes into the environment. Over 90% of all seabirds have plastic pieces in their stomachs. Advantages*and*Disadvantages*of*using*Plastics Plastics are man-made material that can be moulded into different colours and shapes. Discarded plastic also harms sea creatures that eat it … Polymers are long chains of monomers. Plastics have made the 20 and 21st centry much easier for the human race to thrive and live better lives. The disadvantages of plastics: Plastics bags are make of a non-renewable resource, which gives us more reasons to use recyclable shopping bags. Advantages and disadvantages of plastic for class 8 Get the answers you need, now! Disadvantages The following disadvantages have also been identified: Plastic bags are made of petrochemicals, a nonrenewable resource. Advantages of plastic are used to produce another product. | EduRev Class 8 Question is disucussed on EduRev Study Group by 162 Class 8 Students. Advantages and Disadvantages of Plastics The growth of the polymer industry in the latter half of the 20th century has been phenomenal and shows no signs of decreasing. 1 in 3 species of marine mammals have been found entangled in marine litter. 7. 1: it harm the surrounding2: it harm us whenever we keep any hot thing in plastic than many microbe attack on the hot material kept inside the poly bag3: animal are dying cuz we throw garbages and food in plastic and they eat the plastic also sometimes4: pollution. Plastic means "easy to bend or mould into different shapes". (ii) Due to this property of plastics, it is suitable to make the insulating covering of electric wires, handles of electrical appliances, handles of utensils, handles of screw drivers, kitchenware, floor tiles, etc. Pro Lite, NEET are solved by group of students and teacher of Class 8, which is also the largest student Used to reduce soil and wind erosion. We nearly produce and use 300million tons of plastic every year. Vedantu academic counsellor will be calling you shortly for your Online Counselling session. It can be used to make roads, utensils, wires, pipes etc. Decomposes Slowly; As like advantages the first Disadvantages of Plastic is the strong and durability is beneficial when it comes to protection but these same features turn evil when it comes to decomposition. Some plastics causes highly toxic fumes when they are allowed to burn. Plastic has a very low melting point so it can’t be used in conditions where heat levels are high. Disadvantages of plastics: • • • • • • • • • Plastic is a nonrenewable resources. Some of the Disadvantages of Plastic are: Plastics are non renewable. It poses chocking accidents in small children whose toys are mostly made using plastic. It is used in construction of buildings as well. Here are some of the biggest disadvantages of plastic: Chemical Risk Not only that creation and recycling of plastic can cause serious environmental risk, but some of the additives that are infused in plastic can cause permanent harm to our metabolism. New research suggests … plastics account for 3.8% of global greenhouse gas emissions . Plastic do not react with chemicals like acid and base (resist corrosion) Example - Chemicals used at home for cleansing are kept in plastic bottles instead of metal containers. Natural decomposition of plastic can last from 400-1000 years and few types of plastics are non-degradable as well. Thermosetting plastic are those plastic polymers which cannot be molded again and again by use of heat. May 30,2020 - Disadvantages of plastic? Plastic bags are stable and benign in sanitary landfills. It is brief about disadvantages of plastics, if you are looking for detailed study notes then register yourself on Vedantu or download Vedantu learning app. Firstly, because they are made in single sheets, they can only be curved or bent in one area, which limits design options. Pro Lite, Vedantu Log in. Download a PDF of free latest Sample questions with solutions for Class 8, Science, CBSE- Synthetic Fibres and Plastics . Repeaters, Vedantu It can be easily molded into various shapes. Disposal of plastic waste is a major problem because: 1)The articles made of plastic are non-biodegradable.They do not decompose easily. Broadly plastic can be divided into following two types –. 1. Many animals eat plastic materials and die. 2. •    The poisonous gaseous product produced by the decomposition plastic can causes CANCER. Disadvantage of plastics are deformation under load. The Disadvantages of Plastic Skylights Although plastic skylights are safer and sturdier than glass skylights, they do pose several long term disadvantages. Disadvantages of Plastics Plastics production also involved the use of potentially harmful chemicals which are added as stabilizers or colourants. People often assume – and sometimes rightfully so – that certain plastic products are poorly made. Plastic causes water and land pollution. Advantages and Disadvantages of Decentralization, Advantages and Limitations of Forecasting, Advantages and Limitations of Internal Audit, Intro Advantages And Strategies Of Note Making, Structure and Classification of Carbohydrates, Vedantu community of Class 8. causes CANCER Disadvantage of plastics are embrittlement at low temperature. 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