The method that tells you which layer is the oldest is using relative age, with this you can analyze the rock and know that they deepest one is the oldest. This answer does not have the actual method name due to the fact i cannot remember.
I guess it should be hyperkinesia
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Eutrophication is what happens when nutrient levels become too concentrated in rivers, lakes, and oceans. Eutrophication is when the levels of nutrients and minerals in a body of water become too concentrated. It is usually induced by the release of nitrate or phosphate-containing substances into a water body.
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Answer:
its pink i promise it is pink