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Geography GK · Q171

Earth

Competitive Exams · Geography GK · question 171

Q171

Masses of stars and galaxies are usually expressed in ________.

A.
Earth's mass
B.
Solar mass
Answer
C.
Lunar mass
D.
Neutron mass

Answer: Option B

Solution

Answer: Option B
Solution:
Masses of stars and galaxies are usually expressed in Solar mass. The solar mass ( M ) is a standard unit of mass in astronomy, equal to approximately 2×1030 kg.