Which blow from west to east, following the boundary between hot and cold air?

Which is the most accurate name for the ionic compound cas?

Which of the following list the divisions of the geologic time scale in order from longest to shortest

Ascientist notices that an oil slick floating on water when viewed from above has many different colors reflecting off the surface, making it look rainbow-like (an effect known as iridescence). she aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). the index of refraction of water is 1.3