Write a short note on the drainage system of the Indus Valley Civilisation. Why did the Indus people alloy copper and tin to make bronze? (3+2)
Answers
Answer:
The most unique aspect of planning during the Indus Valley civilization was the system of underground drainage. The main sewer, 1.5 meters deep and 91 cm across, connected to many north-south and east-west sewers. It was made from bricks smoothened and joined together seamlessly.
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Explanation:
The most unique aspect of planning during the Indus Valley civilization was the system of underground drainage. The main sewer, 1.5 meters deep and 91 cm across, connected to many north-south and east-west sewers. ... Commoner houses had baths and drains that emptied into underground soakage jars.
The resulting bronze is stronger and harder than either metal. Early on, ancient people alloyed copper with phosphorus or arsenic (whose fumes are toxic), but realised that tin was far more advantageous, and tin-bronzes incomparably superior.
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