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Crq,sNote: attempt all Questions:Q:1 most plastics are non-biodegradable. What does it mean？Q:2 why should plastics be recycled rather than incinerated or burried？Q:3 in what ways are plastics responsible for pollution？Q:4 how would you distinguish between a thermoplastic and a thermosetting plastic？PLEASE HELP ME |
| Answer» <html><body><h2><u>Answers : </u></h2><p></p><p></p><p>1. Any substance that cannot be decomposed by the microorganism in nature into its monomers and causes harm to the environment is called a non - biodegradable substance . Plastic is a polymer that cannot be decomposed by microorganism and remains unaffected even for the period of <a href="https://interviewquestions.tuteehub.com/tag/million-560845" style="font-weight:bold;" target="_blank" title="Click to know more about MILLION">MILLION</a> of <a href="https://interviewquestions.tuteehub.com/tag/years-1464846" style="font-weight:bold;" target="_blank" title="Click to know more about YEARS">YEARS</a> . Hence , these are termed non - biodegradable . </p><p></p><p>2. Plastic should be recycled rather than incinerated ( put down to ashes in incineration chambers) or burried inside soil because when burned plastic releases toxic gases and carbon <a href="https://interviewquestions.tuteehub.com/tag/dioxide-954355" style="font-weight:bold;" target="_blank" title="Click to know more about DIOXIDE">DIOXIDE</a> which causes global warming . Burying plastics will lead to increased <a href="https://interviewquestions.tuteehub.com/tag/landfilling-2779438" style="font-weight:bold;" target="_blank" title="Click to know more about LANDFILLING">LANDFILLING</a> repeatedly . Thus they should be recycled into another usable form for <a href="https://interviewquestions.tuteehub.com/tag/avoiding-7267716" style="font-weight:bold;" target="_blank" title="Click to know more about AVOIDING">AVOIDING</a> any damage to the environment. </p><p></p><p>3. Plastics are non - biodegradable substance. When buried inside the soil , they do not get decomposed for over a span of millions of years causing soil pollution . They also choke the water bodies causing water pollution . Plastics are also a main source of air pollution because when burned , these release toxic gases into the environment . </p><p></p><p>4. A thermoplastic is a kind of plastic that can be molded repeatedly to another usable form whereas a thermosetting plastic is the one that once used cannot be molded again . </p></body></html> | |