The Computron computer with its software, Acupro IIâ¢, is an electrodermal screening system. It is considered an investigational device by the U.S. Food and Drug Administration. The Acupro II measures conductance of the skin at acupuncture points. The skin is not punctured,only touched by a blunt probe.
How much rainfall does a desert get? A desert is defined as an area that receives on average less than10 inches (250 mm) of precipitation per year. Some desert areasreceive virtually no rain at all for years.
Description. Desert biomes are the driest of all the biomes. In fact, the most important characteristic of a desert is that it receives very little rainfall. Most deserts receive less than 300 mm a year compared to rainforests, which receive over 2,000 mm. That means that the desert only gets 10 percent of the rain that a rainforest gets! The temperature in the desert can change drastically from day to night because the air is so dry that heat escapes rapidly at night. The daytime temperature averages 38Â°C while in some deserts it can get down to -4Â°C at night.