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.
Best Answer: They bring convective weather which is short for basically showers and thunderstorms. The airmass associated with a cold front is very unstable. Instability means quickly rising air and that accelerated upward vertical motion is largely associated with thunderstorms. They also bring strong northwesterly winds and colder temperatures. http://en.wikipedia.org/wiki/Weather_fro... http://okfirst.mesonet.org/train/meteoro...