The activities of man had adverse effects on all forms of living organisms in the biosphere. Unlimited exploitation of nature by man disturbed the delicate ecological balance between the living and non-living components of the biosphere. The unfavourable conditions created by man himself threatened the survival not only of him but also of the entire living organisms on the mother earth. One of your classmates is an active member of 'Eco club' of your school which is creating environmental awareness amongst the school students, spreading the same in the society and also working hard for preventing environmental degradation of the surroundings.
The green dustbin signifies:

Options

A. Non-biodegradable waste
B. Biodegradable waste
C. Plastic waste
D. Garbage

Explanation

**Step-by-Step Solution:**

1. **Understanding the Context**: The question discusses the adverse effects of human activities on the environment and mentions an "Eco club" that is working to create awareness and prevent environmental degradation.

2. **Identifying the Significance of the Green Dustbin**: The green dustbin is specifically mentioned in the context of waste segregation. It is essential to understand that different colored dustbins are used to categorize waste types.

3. **Biodegradable Waste**: The green dustbin is designated for biodegradable waste. This type of waste can be broken down by microbial action into simpler, harmless substances. Examples include food scraps, garden waste, and paper.

4. **Importance of Waste Segregation**: Using a green dustbin helps in the effective management of waste. By segregating biodegradable waste from non-biodegradable waste, we can enhance the efficiency of waste processing and recycling.

5. **Conclusion**: Therefore, the green dustbin signifies the collection of biodegradable waste, which is crucial for maintaining ecological balance and reducing environmental degradation.

**Final Answer**: The green dustbin signifies biodegradable waste.

---