5. Name three naturally occuring fibres used in clothing.
6. What do you understand by shearing?
7. How will you decide that an object will float or sink in water?
8. What is crystallisation ?
9. How is winnowing done?
10. What is evaporation ?
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Explanation:
The computer screen on which you are reading this article, the clothes that you are wearing, the food that you eat and even the cars in which you ride all have one thing in common. What is this thing? They all are comprised of some element of carbon. Actually, all organic things are made up of carbon. This is why the study of carbon and its components is so important
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