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How would this aspect of space travel affect astronauts traveling to Mars?
A It would result in loss of muscle tissue and bone density.
B It would make them well-rested and physically stronger.
C It would sharpen their skills in performing complex tasks.
D It would cause them to get on one another’s nerves.
The correct answer is A It would result in loss of muscle tissue and bone density.
Explanation: During long-duration space travel, such as a mission to Mars, astronauts experience microgravity, which can lead to muscle atrophy and bone density loss. Without the effects of Earth’s gravity, their bodies don’t need to support their weight, resulting in a decline in muscle and bone strength. This is a significant concern for the health of astronauts during extended missions. If you have more questions or want to explore further, feel free to ask!