Cyanosis describes the symptom that happens when a personâs skin, lips, or fingernail beds turn from the personâs natural color to a blue or bluish color. The color might also look grayish or dark purple. âCentral cyanosisâ is blueness that mainly affects the lips, tongue, and mouth. âPeripheral cyanosisâ is blueness in the skin of the arms, legs, feet, hands, fingers and fingernail beds. Both of these kinds of cyanosis can be caused by COPD or by complications of COPD.
Types of Business Industries Business industries are classified into five: Product Industries. In this type of industry, you manufacture your own product such as dresses, toys, furniture, and shoes. Agricultural products such as poultry and piggery are also a specialized form of product industry. Process Industries.
Unlike commercial industries, which tend to be large in scale, cottage industries tend to be small in scale. Cottage industries are often based out of a single home, and they may have only one or two employees. In cottage industries, a worker often makes a product from start to finish. Examples of cottage industries include homemade textiles and jewelry.