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.
Four types of industry are: The Manufacturing and Construction Industry. The Service Industry The Cottage Industry The Linkage Industry The Linkage industry emerges from a situation where one industry produces a good which another industry depends on to carry out its activities.