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Raaz Malhotra
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Asked: 2021-06-13T10:44:10+00:00 In:

What are non-biodegradable substances?

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NCERT Important Questions Class 9 Science biology Chapter 14
Important NCERT Extra Questions
Chapter 14 Natural Resources
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board

2021-2022biologybiology chapter 14cbsechapter 14class9natural resourcesncertscience
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      These are substances which cannot be broken down by the activity of microorganisms. These substances go on concentrating at each trophic level of food chain, e.g., DDT and heavy metal (mercury, cadmium, etc.).

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