Hey ik this says isaiah but its abby id k how but my acc got deleted

How is the composition of a meteorite relevant to finding out the composition of earth's core?

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.

Draw the structure for 5-isopropyl-2-methyl-3-nonene