When you own a share of stock, you are a part owner in the company with a claim -- however small it may be -- on every asset and every penny in earnings.As a company's earnings improve, investors are willing to pay more for the stock.here are thousands of stocks to choose from, so investors usually put stocks into different categories: size, style and sector. Size: A company's size refers to its market capitalization, which is the current share price times the total number of shares outstanding.
Two types of bentonite are generally identified. One is called the swelling type or sodium bentonite, which has single water layer particles containing Na+ as the exchangeable ion. The other has double water layer particles with Ca++ as the exchangeable ion. It is called calcium bentonite or non-swelling type.
Mining is classified by the method needed to reach the coal seam. When the coal is found close to the Earth's crust and taking away the overlying layers of material is not too expensive, surface mining is used to remove the top layers of materials and expose the coal.If coal is found in layers far from the surface, underground mining is the preferred technique.Vertical or slanted holes (shafts) are cut down to the mining area underground for ventilation for the workers and for transporting the miners, equipment, and coal.ining is classified by the method needed to reach the coal seam. When the coal is found close to the Earth's crust and taking away the overlying layers of material is not too expensive, surface mining is used to remove the top layers of materials and expose the coal.