High-speed motion of gas and stars near the milky way galaxy's center is explained by
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Ответ:
Source: Astrophysicist
Ответ:
The movement of polar bears help figure out the impact of global warming in the arctic. Since polar bears travel over the frozen ocean they are able to determine the rate it melts as the bears retreat inland. The worse global warming become the quicker it becomes hotter in the arctic which is bad by the way.
Explanation: