the concept of sustainble agriculture lies in

Options

A. Minimizing biopesticides
B. A greater dependance on new crops
C. Least use of biofertillizers
D. using spores of bacillus thuringiensis for pest control

Answer

### Step-by-Step Solution:

1. **Understanding Sustainable Agriculture**:
- Sustainable agriculture is defined as farming that meets society's current food and textile needs without compromising the ability of future generations to meet their own needs. This means that sustainable practices must be environmentally friendly and resource-efficient.

2. **Key Principles of Sustainable Agriculture**:
- The principles include:
- **Incorporation of Biological and Ecological Processes**: This involves utilizing natural processes such as nutrient cycling, soil regeneration, and nitrogen fixation to enhance soil health and productivity.
- **Reduction of Non-Renewable Inputs**: Sustainable agriculture aims to minimize the use of non-renewable resources and harmful chemicals, focusing instead on renewable and environmentally friendly inputs.
- **Utilization of Natural Pest Management**: This involves using natural methods for pest control, which can include biological pest control agents.

3. **Analyzing the Options**:
- The options provided in the question include:
- Minimizing biopesticides
- Greater dependence on new crops
- Least use of biofertilizers
- Using spores of Bacillus thuringiensis for pest control

4. **Identifying the Correct Answer**:
- Among the options, using spores of Bacillus thuringiensis (Bt) for pest control aligns with sustainable agriculture principles. Bt is a natural bacterium that produces a toxin (cryoprotein) effective against certain pests, thus promoting natural pest management without the use of harmful chemicals.

5. **Conclusion**:
- Therefore, the correct answer is the fourth option: **Using spores of Bacillus thuringiensis for pest control**. This method supports sustainable agriculture by utilizing natural resources and processes.