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Continue to ChatNCERT Solutions for 5th Class Environmental Science –(पर्यावरण अध्ययन): Chapter 9-डायरी : कमर सीधी ऊपर चढ़ो ? https://www.indcareer.com/schools/ncert-solutions-for-5th-class-environmental-science-paryavaran-adhyayan-chapter-9-dayari-kamar-sidhi-upar-chadho/