alleryThe frost line of the Solar System lies at about how far from the Sun?
AAbout 1 AU
BAbout 30 AU
CAbout 5 AU
DAbout 100 AU
Answer & Solution
Correct answer: C. About 5 AU
1. The frost line separates the inner rocky planets from the outer giants.
2. It lies at about five astronomical units.
3. One AU is Earth's orbit, and 30 AU is near Neptune, so both are wrong.
_Source: Wikipedia, Solar System, Lead section_
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