Small Bodies Like Asteroids and Comets Are Unlikely to Harbor

question 50

Multiple Choice

Small bodies like asteroids and comets are unlikely to harbor life because they

• A) are constantly colliding with each other, sterilizing any life that may be present
• B) have not had liquid water inside them for extended periods now or in the past
• C) do not contain any organic molecules
• D) are so far from the Sun that any water would be permanently frozen

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