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Changes

From Karnataka Open Educational Resources
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= Textbook =
 
= Textbook =
 +
Government of Karnataka- [http://ktbs.kar.nic.in/new/website%20textbooks/class9/9th%20standard/9th-english-science.pdf Class 9 Science:] Chapter 2-Is matter around us pure
    
= Additional information =
 
= Additional information =