There are several options available for students to refresh their knowledge of social science class 9. However, the best refresher is the one that suits the student's learning style and needs. Here are some of the best refreshers for social science class 9.

1. NCERT Solutions: NCERT Solutions are the best way to revise the entire syllabus of social science class 9. These solutions cover all the topics in detail and are available for free on the NCERT website.

2. Sample Papers: Solving sample papers is an excellent way to prepare for exams. These papers give an idea of the exam pattern and help students to manage their time effectively. EduRev provides a vast collection of sample papers for social science class 9.

3. Revision Notes: Revision notes are a quick and easy way to revise the entire syllabus. These notes are concise and cover all the essential topics. Students can find revision notes for social science class 9 on EduRev.

4. Mind Maps: Mind maps are an excellent way to organize information visually. They help students to remember important points and concepts easily. Students can create their own mind maps or use pre-made ones available on EduRev.

5. Video Lectures: Video lectures are an interactive way of learning. These lectures cover all the topics in detail and help students to understand complex concepts easily. EduRev provides a vast collection of video lectures for social science class 9.

In conclusion, the best refresher for social science class 9 depends on the student's learning style and needs. Students can choose from NCERT solutions, sample papers, revision notes, mind maps, and video lectures to refresh their knowledge of social science class 9. EduRev provides all these resources and more, making it the perfect platform for students to prepare for their exams.

Rajesh Sachdeva,The best refresher for class 9 refresher is "Kundra Bawa".