Class VII, NCERT (CBSE) Science Chapter 2, Nutrition in animals Model Questions Class 7, CBSE Science | Chapter-2, Nutrition in Animals | NCERT Solutions for Science Textbook Exercise Q.1: What is mastication? Solution: Mastication is a process in which chewing of food and mixing of saliva with it is done in mouth. Q.2: What is the role of tongue in our mouth? Solution: The tongue
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