Water Provision in Arid and Semi Arid Areas Essay

Water Provision in Arid and Semi Arid Areas - Essay Example The position of ground water will determine the costs of drilling and the length of the pipes that will be used. If it is far below the cost will be high and if it is near the surface the cost will be less. In rain water harvesting, the main factor that is considered is the amount of rain that is received in the given region. In arid and semi arid areas it is logic that the amount of rain is minimal and so there is the need to ensure that the available rain is utilized in the best way possible. This is done by increasing the surface area of the harvesters. The storage is done in tanks and the water can be used for human consumption, irrigation and also for giving livestock.Rain water harvesting refers to the collection of water before it reaches the ground surface. The water is used for subsistence purposes and also for other purposes like irrigation. Rain water harvesting has been used for a long time in many regions and it has been applied lately in arid and semi arid areas to take advantage of the little amount of rain that is received in those regions. The rain water received is usually preferred over the collected ground water because it is considered soft and lacks the minerals, unlike ground water which is hard and contains minerals which are associated with a number of problems like failing to foam while cleaning and changing of teeth color when drank without boiling.In the collection of rain water, the method that has mainly been used by many people is the collection of rooftop water.

Elasticity of demand Essay Example | Topics and Well Written Essays - 500 words

Elasticity of demand - Essay Example e behavior of price elasticity under monopolistic competition, oligopoly, and monopoly to determine the differences in price elasticity among the economic structures. Under monopolistic competition the price elasticity is high. One of the reasons this occurs is because there are many firms competing in the marketplace. Firms can enter easily into this market structure because there are no barriers of entry. An example of a firm operating under monopolistic competition is the fast food giant McDonalds. It is clear for customer that the prices between fast food chains change a lot based on the price moves made by others. When McDonalds introduced its one dollar value menu, competitors in the industry such as Burger King and Wendy’s followed with an economical menu of their own. The intense competition in under this market structure raises the price elasticity of demand for its players. In an oligopoly market structure the price elasticity of demand is medium. An oligopoly market is one in which there are a limited number of firms participating in the marketplace. Since there is competition the price elasticity of demand is affected by others. There are barriers of entry which limit the number of participants. The price elasticity of demand is lower in monopoly than in monopolistic competition since it now in the best interest of the participants for price wars to occur. Many fluctuations in price among participant in the market can be very damaging to the entire market structure. An example of an oligopoly is the airline industry. Airlines can not go in full price wars since their activities are interconnected as far as sharing resources from airports and the firm know the aggregate demand for flying is somewhat stable, thus a price war will only lower the total profits of all the participants in the market structure. The economic profits of firms participating in an oligopoly depend on the other players which lower the price elasticity of demand. A third market