The standard wave format for any wave is a (transverse a longitudinal an electromagnetic) wave. when depicting a (transverse a longitudinal an electromagnetic wave in standard) wve format, the direction of motion must be rotated by 90 degrees. only one of two waves is shown at a time when placing a (transverse a longitudinal an electromagnetic)wave in standard wave

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..