easy · Act english
An aerospace engineer is explaining the growing problem of 'Kessler Syndrome' in Low Earth Orbit. [1] As the number of satellites increases, so does the probability of collisions between objects. [2] Each collision creates a cloud of debris that can strike other satellites, triggering a catastrophic chain reaction. [3] Eventually, the debris could become so dense that certain orbits become unusable for future generations.
Which choice provides the most effective concluding sentence?
- In short, space is a vacuum where objects can travel at very high speeds without any air resistance.
- Therefore, satellites are essential for providing high-speed internet to remote areas of the planet.
- Consequently, many private companies are now competing to launch their own rockets into outer space.
- This cascading effect threatens the long-term sustainability of satellite-based communication and navigation.
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