Question

Which of the following groups contain only biodegradable items?

• A. Grass, flowers and leather
• B. Grass, wood and plastic
• C. Fruit peels, cake, and lime-juice
• D. Cake, wood and grass

Answer 1

Answer: (C), (D)

Cake, wood and grass

The correct options are C and D.

Explanation of correct option:

1. Biodegradable wastes are waste materials degraded by natural processes such as microbes.
2. Fruit peels, cake, wood, and lime juice are biodegradable materials.

The explanation of incorrect options:

Option A

1. Non-biodegradable substances are wastes that cannot decompose by natural processes.
2. Grass and flowers are biodegradable (easily decompose by the microbes).
3. Leather is non-biodegradable.

Option B

1. Non-biodegradable waste cannot be easily broken down by the action of microbes.
2. Grass and wood are biodegradable (easily decompose by the microbes).
3. Plastic is a non-biodegradable material.

Final answer: Fruit peels, cake, lime juice, wood, and grass are biodegradable items.