one problem with the geocentric model was that it didn’t allow for variations in planetary brightness

Which of the following statements best explains why there tends to be a greater number of large cities in southern africa than the east africa

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

The middle east links which two continents? ●asia and europe●europ and africa●africa and asia●africa and australia