Answer:
part b is the right answer
Explanation:
The amount of the gravitational force doubles
Water boils at 100<span>°C</span>
A Light Year is a mesurement of 5.879e+12 miles Compressed into one unit of mesurement or a "Light Year"
Light Years are used in the measurement of the universe because, to put it simply, SPACE IS BIG! The use of Light Years (5.879e+12 miles) Breaks the observable universe down into manageable chunks for astrologists.