Which of the following is non-biodegradable?

Which of the following is non-biodegradable?

مندرجہ ذیل میں سے کون سا غیر بایوڈیگریڈیبل ہے؟
Explanation

Biodegradable:

Materials that decompose naturally by microorganisms.
Examples: Paper, food waste, leaves.

Non-Biodegradable:

Materials that do not decompose easily or naturally.
Examples: Plastics, metals, synthetic fibers.