Think of tap water and how all those materials get in it like Fluoride
The answer to your question is <span>chemical energy
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Answer:
Bacteria commonly change <u>nitrogen</u> to a form that can then be easily assimilated by plant.
Answer:
The liver regulates most chemical levels in the blood and excretes a product called bile. This helps carry away waste products from the liver. All the blood leaving the stomach and intestines passes through the liver.