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.
Making the world better, one answer at a time. Cold fronts produce most of the severe weather most of the time. This is because the cold air undertakes the warm moist air ahead of the front. As this happens the warm air is lifted into the atmosphere causing it to condense and cool quickly creating cumulonimbus clouds, or thunderclouds.