Misc: Traditionally, how many colors are considered to be in a rainbow?

Questions

a mass of concentrated earthly material perennially rotating on its axis will not accumulate an accretion of bryophytic vegetation.?

everything that coruscates with effulgence is not ipso facto aurous.?

honeysuckle, tiny world, chux.?

what is siderodromophobia (which freud suffered from)?

"america is the only nation in history that has gone directly from barbarism to degeneration without the usual interval of civilization"?