Answer: I gotchu.
The physical change occuring would be the butter melting, because the butter is still butter, but it changed from a solid to a liquid. This is not the chemical change, because you can put melted butter in the fridge and it would be solid again. The chemical change that is occuring would be toasting the bread. This is because when you toast bread, you can't untoast it. It changed, the chemical status of the bread is now toast if that makes sense. The key thing to remember here is that a physical change can be undone whereas a chemical change cannot.
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Probably the Revolutionary War, this was mainly caused because the colonists were REALLY tired of the British taxing them and treating them really badly without representing them back in England.
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Hope that helps!
The unemployment rate went as high as 24.9% during the great depression.
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They wanted a route that was not only quicker, but safer and less rough. A passage that was easy to navigate and ensure the goods to trade would arrive at their destination and the ships would return with the exchanged goods and profits.
Most of the time ships travelled looking for good trading routes and land to claim in the name of their country