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Matter in Our Surroundings Class 9 Notes Science Chapter 1 Facts that Matter Introduction Everything in this universe is made of materials which scientist has names ‘matter’. The matter is made up of very small tiny particles. It is not continuous but is particulate. The matter is anything that occupies space and has mass. Particles of matter [...]
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NCERT Solutions for Class 11 History Chapter 1 From the Beginning of Time Class 11 History Chapter 1 NCERT Textbook Questions Solved Question 1. Look at the diagram showing the positive feedback mechanism on page 13. (See NCERT Textbook). Can you list the inputs that went into tool making? What were the processes that were [...]