Question 1. What kind of change is shown by tearing of paper? Question 2. Give example of a physical change which occurs by the action of heat. Question 3. How can you say that ripening of a fruit is a chemical change? Question 4. Is souring of milk a physical change or a chemical change? Why? Question 5. Name the process by which common salt is obtained from sea water.
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answer of first one is physical changes
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