Which of the following polymers is found in stockings and ropes?

polystyrene

polypeptide

polysaccharide

nylon

Option D, Nylon

Explanation:

Polystyrene is made up of polymerization of styrene. It is brittle, stiff and transparent and is widely used in making containers, disposable utensils etc. Thus it is not the correct answer

Polysaccharides are biomolecules made up of polymers of sugars and constitute structural components of cellulose. Thus it is not the correct answer

Polypeptides are chains of amino acids which are biomolecules and thus cannot be the right choice of answer

Nylon, are synthetic polymers which have high melting point and are resistant to abrasion. Thus they are used in ropes and stockings

Hence the correct answer is nylon

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

gold i'm pretty sure i might be wrong