Multiple choice general knowledge science & technology

There is no definite boundary between Atmosphere and the Outer space

  1. True

  2. False
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A Correct answer
Explanation

True - The atmosphere gradually becomes thinner with increasing altitude and doesn't have a sharp, definite boundary with outer space. While the Karman line at 100 km is often used as a conventional boundary for space, atmospheric particles extend far beyond this point, creating a gradual transition rather than a distinct edge.

AI explanation

Earth's atmosphere doesn't end abruptly; it thins out gradually with altitude until it blends into the near-vacuum of space, with trace gases detectable hundreds of kilometers up. While the Kármán line (~100 km) is commonly used as a convenient legal/technical boundary for "where space begins," it's an arbitrary convention, not a physical wall — atmospheric density simply keeps decreasing exponentially rather than stopping at a defined point. So it's accurate to say there's no truly definite physical boundary between atmosphere and outer space.

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