Discussion
Select the set that correctly matches the type of waste given in Column A with the approximate time taken by it to decompose which is given in Column B.
| Column A | Column B |
|---|---|
| a. Plastic bottle | i. 2 - 5 months |
| b. Silk scarf | ii. 1 - 2 weeks |
| c. Cotton shirt | iii. 10 - 30 days |
| d. Banana peel | iv. 4 years |
| e. Paper | v. Several years |
Choose the correct option :
Answer: B
The correct matching is a-v, b-iv, c-i, d-ii, e-iii.
Biodegradable materials made from plants and animals decompose at very different rates. Kitchen waste such as a banana peel breaks down in a week or two, paper in a few weeks (about 10-30 days), a cotton shirt in a few months (2-5 months) and a silk scarf, made of animal protein fibre, is usually given as about 4 years. A plastic bottle is not biodegradable in any useful sense and lasts for many years.
The answer can be fixed from the two clearest pairs alone: plastic lasts several years (a-v) and cotton cloth decays in a few months (c-i). Only option 2 has both; options 1 and 3 give plastic only 4 years, and option 4 gives cotton 1-2 weeks.
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