Sandstorms are dry winds, these dry winds blow over the deserts that raises and carries along clouds of sand or dust often so dense as to obscure the sun and reduce visibility almost to zero. These winds are usually the result of convection currents created by intense heating of the ground. These winds are strong enough to move dunes, and often are interferes with travel, sometimes obliterating roads in flat dry regions such as those of the west part of the United States. The simoom (or simoon) is the dust- and sand-laden desert wind of North Africa and Arabia that contributes largely to the atmospheric dust over Europe; evidence of the dust from simoon winds has also been found on the seafloor at considerable distances from shore. Some sandstorms are often appearing as solid walls of dust as much as 5,000 ft high. Sandstorms usually arrive without warning and will advance in the form of a big wall of dust and debris.
Most sandstorms occur in spring, and during the daytime. The last recorded devastating sandstorm in American history was the Dust Bowl, which caused the depression. This sandstorm occurred near Tucson, Arizona, on July 16, 1971, and was extensively documented by meteorologists. Unfortunately, we cannot prevent sandstorm from happening, however; researchers state that by deforestation and excessive cultivation of farmland can cause a sandstorm problem.
Also, Over-grazing and excessive use of water resources can also cause sandstorms. In order to protect ourselves from sandstorms is to wear protective goggles and suits. Also people can install special air filters in their cars to prevent sand from getting into the engine. Sandstorms not only damage the materialistic things that we may have, Sand storms can cause hacking coughs, and the sand and dust have also been known to be capable of carrying 'infectious diseases'. Sand particles, unlike dust ones, will clog air passages, and cause the person who breathes them in to choke.
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