Which of the following listed materials are classified as Biodegradable___________?
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Answer: B. Dead Plants
Explanation
Dead plants are organic matter that can be broken down by microorganisms, classifying them as biodegradable. Fungi and bacteria secrete extracellular enzymes that decompose plant cellular structures like cellulose into simpler compounds. Natural biological decay recycles the nutrients from dead plant matter back into fertile soil ecosystems. Biodegradation is the breakdown of organic substances by the enzymatic action of living organisms such as bacteria. Plant tissues are primarily composed of carbon-based polymers like cellulose, lignin, and hemicellulose which microbes digest. Composting turns dead plant waste into nutrient-rich humus through controlled aerobic microbial decomposition processes.
Option A is incorrect because metal cans are manufactured from aluminum or steel and do not readily biodegrade naturally. Option C is incorrect because glass is an inorganic, non-porous material that resists microbial breakdown in the environment. Option D is incorrect because one of the provided options accurately points to a biodegradable organic material.
- Subject
- Everyday Science
- Category
- Everyday Science
- Topic
- —
- Difficulty
- medium
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