Explain the two theories about how the earth and the sun move in space relative to each other

The rules of engagement (roe) working group is often used to (select all that apply.)

What three things determine the shape and size of a puddle when water is poured out onto a surface

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.