At the end of the most recent Ice Age, which two continents were cut off from one another, dramatically affecting the course of
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Answer:
Explanation:
The toothbrush as we know it today was not invented until 1938. However, early forms of the toothbrush have been in existence since 3000 BC. Ancient civilizations used a "chew stick," which was a thin twig with a frayed end. These 'chew sticks' were rubbed against the teeth
