Because a virus lacks the ability to translate DNA's coded instructions into proteins, it must parasitize cells in order to translate its own genetic code and reproduce itself. The color of your hair as well as the color of your skin are inherited traits, and are determined by how much melanin and phaeomelanin you have in your body. Brunettes have high levels of melanin, redheads have high levels of phaeomelanin, and blondes have very little of either. This low- pressure center develops when warm, saturated air is pushed upward by denser, cooler air. Wind velocity is greatest close to this low pressure point, reaching speeds that may exceed 75 mph.
Hurricanes always begin in the tropics but can move either north or south out of the tropics.
A tornado is a rapidly spinning column of air formed during severe thunderstorms. The rotating column or vortex forms inside the storm cloud, growing downward until it touches the ground. Tornadoes usually form several thousand feet above the Earth's surface, usually during warm, humid weather, and can be a few yards to almost a mile wide where they touch the ground. While wind speeds in hurricanes rarely exceed 130 mph, tornado wind speeds can be faster than 200 mph, with the most powerful tornadoes forming over the Plains of the United States.