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Both are only physical changes.

Explanation:

The green stuff is cupric chloride, a byproduct of corrosion of the valve body or possible copper leachate in the water. Either way, it's typical of water leakage where the water is of low pH.  Boiling sugar to make caramel is the same as eating sugar, just in a different form.

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crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.

patriotism is when people have love and devotion for their country.

explanation: