Answer:
Magnetic reversals
Explanation:
When the Earth's magnetic field reverses, a new stripe, with the new polarity, begins. Such magnetic patterns led to recognition of the occurrence of sea-floor spreading, and they remain some of the strongest evidence for the theory of plate tectonics.
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Bioethanol is an alcohol made by fermentation. Also <span>Biofuel is made from Fermentation.
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Answer:
through the break down of macromolecules
