Which of the following is a physical change?
ⓐsaw a piece of wood in half
ⓑburn a piece...
![History](/tpl/images/cats/istoriya.png)
History, 09.10.2019 07:20, gladysvergara
Which of the following is a physical change?
ⓐsaw a piece of wood in half
ⓑburn a piece of wood
ⓒrust formed on an iron fence
ⓓa copper roof that changes color from red to green
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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