Disha Publication offering study material and preparatory notes. Students of CBSE class 9 Science can download notes on “Clean India- We Mean It” and detailed extracts for OTBA preparation at free of cost. Additionally, you can also go through the CBSE Sample questions as well as additional questions along with answers for your preparation.
This case is taken from the book “OTBA Analysis Class 9 Science, Maths, Social, English & Hindi (2015-16) 3rd Edition” displayed below. Concern following books for other cases and related study material.
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