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Ncert Cbse Class 10, Science (Chemistry)   Chemical Reactions and Equations Science Notes What is a ‘Reaction’? Reaction is a term used for depicting a change or transformation in which a substance decomposes, combines with other substances, or interchanges constituents with other substances. What is a ‘Chemical Reaction’? A chemical change is always accompanied by a chemical reaction.

Class 7, Towns, Trades and Crafts Persons Sample Hot Questions based on NCERT textbook following CBSE syllabus, CCE pattern  Short type Questions with their Answers Q.1: What were the kinds of towns in the medieval period? Or, For what purposes towns were made in the medieval period? Answer: During the medieval period the towns were of many kinds which were made for  various

Class 10 Ncert Cbse Geography | Contemporary India - II RESOURCES AND DEVELOPMENT  Activities and NCERT textbook In-Text Questions Q.1: Identify at least two resources from each category. Ans: Biotic resources - 1. human beings, 2. natural vegetation. Abiotic resources - 1. water, 2. coal, 3. petroleum. Renewable resources - 1. forests, 2. solar energy. Non-renewable resources - 1.