1.Give methods by which pollution due to plastics can be solved.2.What are the properties of polythene(polyethylene)?3.Are polymers natural or synthetic?4.Name two fibres that are highly inflammable.5.Why do we use plastic cookwares in microwave ovens?6.Give the differences between thermoplastics and thermosetting plastics.7.What is 4R's principle?As a responsible citizen,what 4R's principle should be remembered by us?
Plastic is now used for many of the patients materials, so that thye can be discarded instead of washed and sterilized. in a resource recovery facility where they are burned at 2500oF they can be used as fuel producing CO2 and H2O We need to use less plastic, more reuse, less packaging, more recycling, there are natural and synthetic polymers. protein and starch are polymers, so are nylon and dacron synthetic fibers are flamable In a microwave oven, metals would reflect the waves away from the food and back at the magnetron causing damage. paper, glass and plastic transmit the waves recycle, reuse, reduce,
