Question 1 What are the various ways to save the environment from excessive plastic wastes? Question 2 What is meant by 3 R's principle in context of use of plastics? Question 3 State the ways in which we can avoid the use of plastics? Some of the steps which can be taken to save the environment from plastic waste are: 1) We should try to reduce the use of plastics … [Read more...] about Steps to save environment from plastic waste
Synthetic fibres and Plastics
Harmful Effects of Plastics
Question 1 How the use of plastic has a bad effect on the environment? Question 2 Explain, why disposal of plastic waste is a major problem. Give reason? Question 3 State whether plastic is biodegradable or non-biodegradable? Question 4 How do carelessly thrown plastic bags affect dirty water drains and sewers? Question 5 How do carelessly thrown plastic bags affect … [Read more...] about Harmful Effects of Plastics
Biodegradable and Non-biodegradable Material
Question 1 What are bio-degradable material? Give example? Question 2 What are non-biodegradable material. Give example? Biodegradable and Non-biodegradable material A material which gets decomposed through natural processes (such as action of bacteria)are called as biodegradable material. For Example : Plant waste, animal waste, paper, cotton, cloth, woolen cloth, … [Read more...] about Biodegradable and Non-biodegradable Material
Properties of plastics
Question 1 Why plastic containers are preferred for storing food? Question 2 Why plastics containers are used to store chemicals? Question 3 Why handles of cooking utensils are made of plastic? Question 4 Why handles of screw drivers used by electricians are also made of plastic? Question 5 Write few properties of plastics? Properties of Plastics 1)Plastic is … [Read more...] about Properties of plastics
Types of plastics
Question 1 What are thermoplastics? Question 2 Give example of thermoplastics? Question 3 What are thermosetting plastics? Question 4 Give example of thermosetting plastics? Question 5 What are the various types of plastics? Question 6 Why are thermoplastics not used for making frying pan handles? Question 7 Why frying pan handles are made of thermosetting … [Read more...] about Types of plastics