This PPT is based on the NCERT grade 7 Science textbook’s chapter, ‘Respiration in Organisms’. Respiration is essential for the survival of all living things. The process of taking in oxygen-rich air and giving out carbon dioxide-rich air is known as breathing. Why is respiration so important for us? What are the various ways in which respiration occurs? Download both the PPTs on this chapter to learn the concepts well and ace your examinations. Good Luck!

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