Describe how physical and chemical changes are different. how are they similar?

Well a chemical change is when substances are combined and the final product is permanent

For example ... baking a cake is a chemical change because the ingredients in the cake can't be separated as separate substances like they were in the beginning

A physical change is where the substances isn't changes, but just the appearance.

For example... origami or cutting paper is considered a physical change because even though it was cut or folded it is still paper.  

One similarity is that the physical and chemical changes are categorized under characteristic changes

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the answer is false because not all countries have geysers under their crust. for example, iceland uses geothermal energy because it is available every in their country.  

answer; i believe that the correct answer is (c) explore the outer planets; / plz check good luck