Question

Pick up the non-biodegradable substance from the following: animal bones, wood, paper, glass.

Answer 1

Non-biodegradable substances:

• Non-biodegradable substances cannot be broken down by natural decomposition or biological process into harmless components.
• These are usually man-made or artificial substances.
• They are usually recycled.

Examples of Non-biodegradable substances:

Glass, Nylon, plastic, lead, mercury, synthetic fibers.

Examples of biodegradable substances:

• Animal bones because they are composed of organic compounds.
• Wood and paper are other examples of biodegradable substances.