After the ban on plastic bags, students of a school decided to make the people aware of the harmful effects of plastic bags on the environment and Yamuna river. To make the awareness more impactful, they organized rally by joining hands with other schools and distributed paper bags to vegetable vendors, shopkeepers, and departmental stores. All the students pledge not to use polythene bags in the future to save the Yamuna river.
After reading the above passage, answer the following questions:
(i) What values are shown by the students?
(ii) What are bio-degradable polymers? Give one example.
(iii) Is polythene a condensation or the addition polymer?

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Solution

(i) From the given passage, we can conclude that the students showed awareness about the environment.
(ii) A polymer that can decompose by micro-organisms within a definite period of time, so that the polymer or its degraded product does not cause any harm to the environment, is called a bio-degradable polymer.
For example, poly- $β$ -hydroxybutyrate-CO- $β$ -hydroxy valerate (PHBV) is a bio-degradable aliphatic polyester.
${⎡ ⎢ ⎣ \begin{matrix} - O & - & C H - & C H_{2} & - C & - O & - & C H & - & C H_{2} & - & C - | & | | & | & | | C H_{3} & O & C H_{2} C H_{3} & O \end{matrix} ⎤ ⎥ ⎦}_{n}$
(iii) Polythene is an addition polymer that is formed by addition of ethene molecules.
$n (C H_{2} = C H_{2}) E t h e n e P o l y m e r i s a t i o n - -------- \to n [C H_{2} - C H_{2}] (Repeating unit) ⟶ [C H_{2} - C H_{2}]_{n} Polythene polymer$

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The court passed an order to ban polythene bags as

(i) These bags are creating many environmental problems which affect the lives of people in general.

(ii) Society, in general, is more concerned about quality of life.

(iii) the government decided to give subsidy to the jute industry to promote this business.

(iv) Innovative techniques are being developed to manufacture jute bags at low rates.

(v) Incomes are rising and people can afford to buy these bags.

Identify the different dimensions of business environment by quoting the lines from the above particulars.

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