1)Explain why hard water flowing in lead pipes may be safer for drinking than soft water flowing in the same pipes.
2)State one use of lead other than making of lead pipes
1) Hard water contains minerals like calcium and magnesium that can form a protective layer inside lead pipes, reducing the amount of lead that leaches into the water. In contrast, soft water with lower mineral content can cause more lead to be released from the pipes into the water.
2) Lead is commonly used in the production of car batteries.