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.
In this lesson, we'll explore the four different types of economic systems found across the globe. These types include: a traditional economy, command economy, market economy, and mixed economy. A Traditional Economy. The oldest type of an economy found around the world is a traditional economy, which is based upon a people's belief and customs. In these self-sustaining economies, communities and families grow crops and manage their farms using traditional methods. What they produce is what they get to consume. Traditional economies can still be found in the developing world, like parts of Asia, Africa, and South America.