a) Blending: Any synthetic fibre can be combined with two or more other fibres is called blending. Natural and synthetic fibres are often blended for preparing better fabric.
When first fibre is blended with second fabric it gives us a blended fabric which possess the best quality of both.
Eg: We know cotton wearing is comfortable and polyester is wrinkle free. When cotton and polyester blend the end result of fabric formed is comfortable and wrinkle free.
b) Biodegradable: A material which is easily decomposed by natural process is called biodegradable.
Eg: Vegetables, fruits, paper, cotton, clothes, woolen clothes, etc.
c) Recycling: Recycling is a process of conversion of broken plastic material into new plastic products.
d) Decomposition: Certain materials can break down in to smaller fragments in the presence of water, sunlight and oxygen. These fragments get further broken down by bacteria. This is called decomposition.