(b) What is the key belief of organic farmer?

Explanation

### Step-by-Step Solution:

1. **Understanding Organic Farming**: Organic farming is a method of agriculture that emphasizes the use of natural processes and materials. It avoids synthetic chemicals, focusing instead on sustainable practices.

2. **Practices in Organic Farming**: Organic farmers utilize various techniques such as crop rotation, green manure, composting, and biological pest control. These practices help maintain soil health and reduce dependency on chemical fertilizers and pesticides.

3. **Biodiversity Protection**: The key belief of an organic farmer is to protect and promote biodiversity. This involves cultivating a variety of crops and managing ecosystems in a way that supports a wide range of organisms, including beneficial insects, soil microorganisms, and plants.

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