Points to Remember. 1  Marijuana refers to the dried leaves, flowers, stems, and seeds from the hemp plant, Cannabis sativa. 2  The plant contains the mind-altering chemical delta-9-tetrahydrocannabinol (THC) and other related compounds. 3  People use marijuana by smoking, eating, drinking, and inhaling it.
A cold front is symbolized on a weather map as a line with triangles. The triangles can be thought of as icicles. Cold fronts are often coloured blue. The presence of a cold front means that cold air is advancing and pushing underneath warmer air.
When the ground position of a front moves so that warm air occupies territory that was previously held by cold air, what type of front is it? warm front When cool air rapidly displaces the warmer air along a cold front, which cloud type is produced? cumulonimubs The advance of which type of air mass produces most cold fronts that develop in the United States?