Asked by Sara

Which of the following geological changes are physical changes and which are chemical changes?

a)formation of a limestone cave
b)creation of a canyon by a river
c)wearing of rocks by wave action
d)destruction of lakes by acid rain
e)heaving of the ground by ice formation

a = chemical
b = chemical
c = chemical
d = chemical
e = physical

Please correct any mistake of mine, thank you:-)

Answers

Answered by DrBob222
b is physical. c is physical. Your answers of chemical should be answered this way. If they are chemical reactions, what DIFFERENT substances were formed when the canyon was formed? What DIFFERENT substances were formed when rocks were worn down by wave action?
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