Which is evidence that scientists use to support the big bang theory?
Most galaxies are moving away from each other.
Most orbits have an elliptical shape.
The outer planets are mostly composed of hydrogen and helium.
Earth is the only planet with permanent liquid water on its surface.
Stacey Warren - Expert brainly.com
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Tbh, I would think A or B.
I think A would be a better choice because the Big Bang was a "explosion" in short, and the planets all expanded across the galaxy. So I guess you could say that the galaxy is expanding because of the Big Bang. The other answers don't really seem to relate.