What was the cause of the eruption of mount st helens

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted

Which two following best identify the central themes of this speech in the passage the man in the arena

Where did the solar system come from?