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.
Warm Front Cold Front. Warm air mass meets Cold air mass overtakes &. & rises above cold air mass pushes under warm air mass. Slow, steady rain Heavy rains, and. Violent thunderstorms. Hot, humid weather follows Fair, cool weather follows. More gentle slope Steeper slope. Warm Front Cold Front. Warm air mass meets Cold air mass overtakes &. & rises above cold air mass pushes under warm air mass. Slow, steady rain Heavy rains, and.