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Q8 (CDS-I/2010) Environment & Ecology › Pollution & Conservation › Waste management practices Answer Verified

Which one of the following is not biodegradable ?

Result
Your answer: —  Â·  Correct: B
Explanation

Biodegradable substances are those that can be broken down by natural processes, such as microbial action, into simpler compounds. Woollen mats (derived from natural animal fibers), leather bags (made from animal hide collagen), and jute baskets (natural plant fibers) are all organic in origin and thus biodegradable [3]. While tanning processes can slow the decomposition of leather, it remains an organic material that eventually breaks down [2]. In contrast, silver foil is a metal. Metals, along with plastics, glass, and salts of heavy metals, are classified as non-biodegradable pollutants because they are not decomposed by biological agents or microbial action [3]. These materials persist in the environment for extremely long periods, unlike natural fibers like jute or wool which return to the ecosystem [3].

Sources

  1. [1] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 5: Environmental Pollution > 5.r.r. Classifications > p. 63
  2. [2] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 12: Major Crops and Cropping Patterns in India > Glossary > p. 101
  3. [3] https://www.psscive.ac.in/storage/uploads/textbooks/pdf/english/jute-products-artisan-english-class-11.pdf
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SIMILAR QUESTIONS

CDS-I · 2011 · Q41 Relevance score: 2.86

Which one among the following groups of items contains only biodegradable items?

CDS-II · 2013 · Q11 Relevance score: 2.17

Which one among the following groups of items contains only biodegradable items ?

CDS-I · 2011 · Q50 Relevance score: -0.10

Which one among the following industries produces the most non- biodegradable wastes?

NDA-I · 2021 · Q78 Relevance score: -0.24

Which one of the following is not a bio-mass energy source?

CAPF · 2009 · Q120 Relevance score: -1.17

Assertion (A) : Import of Chinese toys was recently banned by the Government of India. Reason (R) : The plastic material used to make the toys are not biodegradable.