E ile başlayan isimler bulur musunuz?(En fazla bulanı en iyi cevap veren seçeceğim.) :)

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Katie and her father are looking at the pipes around their house. they find that some of the pipes have rust on them, making them look and feel different than normal pipes. what kind of change have the rusted pipes gone through? a. a physical change b. a vibration change c. a chemical change d. a temperature change