What causes thunderstorms? Thunderstorms form when an air mass becomes so unstable that it overturns (convects) violently. Unstable means that the air in the lowest layers is unusually warm and humid, or that the upper layers are unusually cool, or oftentimes, both.
Aloe is the name of a plant genus that contains more than 300 species. Most of the aloe species are native to Africa, Madagascar and the Arabian Peninsula. In addition to the familiar cactus-like plant called aloe vera that many people use to soothe sunburns and other skin ailments, this genus has plants that range from grassy succulents to large trees.
Aloe Vera. Aloe barbadensis. There are over 250 species of Aloes in the world, mostly native to Africa. They range in size from little one inch miniatures to massive plant colonies consisting of hundreds of 2 foot diameter plants. Although most Aloes have some medicinal or commercial value, the most commonly known is the Aloe barbadensis... better known as the Aloe Vera.