1. Because the definition of extreme is something that reaches the greatest level of all. While use of the term "extreme sport" has spread far and wide to describe a multitude of different activities, exactly which sports are considered 'extreme' is debatable. Extreme sports (also called action sports and adventurous sports) is a popular term for certain activities perceived as having a high level of inherent danger. These activities often involve speed, height, a high level of physical exertion, and highly specialized gear.
2. Because the strongest and the fastest person is using the maximum speed or strength to complete a race.
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