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.
Degradation of non-biodegradable waste is difficult because :

Options

A. Non-biodegradable wastes cannot be recycled.
B. Microorganisms cannot decompose it.
C. They can be made into organic wastes.
D. All of the above

Explanation

### Step-by-Step Text Solution:

1. **Understanding Non-Biodegradable Waste**: Non-biodegradable waste refers to materials that cannot be broken down by natural processes, particularly by microorganisms. Examples include plastics, glass, and certain metals.

2. **The Role of Microorganisms**: Microorganisms, such as bacteria and fungi, play a crucial role in the decomposition of biodegradable waste. They produce enzymes that break down organic materials into simpler, harmless substances.

3. **Why Non-Biodegradable Waste is Difficult to Degrade**: Non-biodegradable waste lacks the necessary enzymes that microorganisms need to decompose these materials. As a result, they remain in the environment for a long time without breaking down.

4. **Evaluating the Options**:
- **Option A**: Non-biodegradable waste cannot be recycled. (This statement is not entirely true; some non-biodegradable materials can be recycled.)
- **Option B**: Microorganisms cannot decompose it. (This is true and is the primary reason for the difficulty in degrading non-biodegradable waste.)
- **Option C**: They can be made into organic waste. (This statement is incorrect as non-biodegradable waste cannot be converted into organic waste.)
- **Option D**: All of the above. (Since A and C are not true, D cannot be correct.)

5. **Conclusion**: The correct answer is **B**: Microorganisms cannot decompose it. This highlights the main challenge in dealing with non-biodegradable waste.