Answer :
Answer:
A thin, atmosphere-like volume surrounding a planet or natural satellite where molecules are bound to that body, but where the density is too low for them to behave as a gas by colliding with each other.
Explanation:
Answer:
A thin, atmosphere-like volume surrounding a planet or natural satellite where molecules are bound to that body, but where the density is too low for them to behave as a gas by colliding with each other.
Explanation: