Sources for full-length, UPSC-style mock tests for Agriculture Optional:

1. EduRev:
- EduRev is a reliable platform that offers a wide range of mock tests for various UPSC optional subjects, including Agriculture.
- It provides full-length mock tests that are designed to simulate the actual UPSC examination pattern, ensuring that you gain sufficient practice and familiarity with the format.
- The questions are curated by subject matter experts, ensuring their relevance and alignment with the UPSC syllabus.
- EduRev also provides detailed solutions and explanations for each question, allowing you to understand the concepts and improve your knowledge base.

2. Previous Year Question Papers:
- Another valuable resource for preparing for the Agriculture Optional is to solve previous year question papers.
- By solving these papers, you can get a clear idea of the type of questions asked in the UPSC examination and the level of difficulty.
- It will also help you identify the areas where you need to focus more and improve your understanding.
- You can find previous year question papers from reliable sources such as the official UPSC website or reference books specifically designed for UPSC preparation.

3. Coaching Institutes:
- Many coaching institutes offer mock tests specifically designed for Agriculture Optional.
- These institutes have subject matter experts who are well-versed with the UPSC syllabus and examination pattern.
- They provide comprehensive mock tests that cover the entire syllabus and are designed to assess your knowledge and preparation level.
- Some coaching institutes also provide detailed feedback and analysis of your performance, helping you identify your strengths and weaknesses.

4. Study Groups and Online Forums:
- Joining study groups or online forums focused on UPSC Agriculture Optional can also be helpful.
- Members of these groups often share mock tests and practice questions, allowing you to diversify your preparation materials.
- You can also engage in discussions and exchange knowledge with fellow aspirants, enhancing your understanding of different topics.

In conclusion, EduRev, previous year question papers, coaching institutes, and study groups/online forums are reliable sources for obtaining full-length, UPSC-style mock tests for Agriculture Optional. These resources will provide you with ample practice and help you assess your preparation level for the UPSC examination.