GENERAL KNOWLEDGE

GK

THE UNIVERSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which type of force holds galaxies together?
A
electrostatic forces
B
magnetic forces
C
friction
D
gravity
Explanation: 

Detailed explanation-1: -Most galaxies are not alone in the vast expanse of space, but are connected to one or more other galaxies by gravity.

Detailed explanation-2: -Galaxies are thought to begin as small clouds of stars and dust swirling through space. As other clouds get close, gravity sends these objects careening into one another and knits them into larger spinning packs.

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