.

In prolonged space flight, besides the obvious hazards of meteors, rocky debris, and radiation, astronauts will have to deal with muscle atrophy brought on by weightlessness; therefore, when they return to Earth, they face a protracted period of weight-training to rebuild their strength.

What is the most likely meaning of the underlined word debris as it is used in this passage?

Created: 5 months ago | Updated: 5 months ago
Updated: 5 months ago

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one who flirts with ladies
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