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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 8

Kumar is going to build a house. To purchase the iron rods required for construction, he visited an iron and steel shop nearby. The seller showed him some iron rods which are fresh and good. - Science

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Question

Kumar is going to build a house. To purchase the iron rods required for construction, he visited an iron and steel shop nearby. The seller showed him some iron rods which are fresh and good. He also showed him little older iron rods which are brownish in appearance. The price of fresh rods is more than the older ones. The seller also gave some offers to older ones. Kumar’s friend Ramesh advised him not to buy the cheaper rods.

  1. Is Ramesh right in his suggestion?
  2. Could you explain the reason for his suggestion?
  3. What are the values shown by Ramesh?
Short Note

Solution

  1. Yes, Ramesh is right in his suggestion because old iron rods were rusted.
  2. The older rods are brownish and they are rusted. Rusting destroys the quality of the iron rods and harmful for construction.
  3. Responsible behaviour, correct decisions, caring, and awareness.
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Effects of Chemical Changes: Environmental Effects
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Chapter 10: Changes around us - Exercises [Page 112]

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Samacheer Kalvi Science [English] Class 8 TN Board
Chapter 10 Changes around us
Exercises | Q VIII. 1. | Page 112
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