supply and demand in the housing industry

The electric power line enters our house through three wires. One is called the earth wire or ground wire. This carries no electricity. The earth wire is connected to a large metal plate buried deep in the ground. The remaining two wires carry electricity. One of these is maintained at ze..

Industrial hydrogen is prepared with the help of coke, air and water. Coke is packed into a huge furnace or chamber, and very hot air is passed through for some time. The oxygen of the air combines with the coke to form carbon dioxide, liberating huge amount of heat, i.e., it is an exothe..

Normal green house effect was principally dominated by H 2 O (vapour), CO 2 and O 3 the interception of infrared radiation by these gases was in the wavelength ranges as given below: Water vapour - 6 - 25 m m CO 2 - 13 - 17 m m O 3 - 9 - 10 m m Human activities have aggrevated the green h..

Population supplies trained and skilled labour to the country. It is important for the economic growth. If the skilled labour pioneer is properly utilised in industries, it will result in large scale production and the cost of production will fall, the price of products will dec..

Platinum is required as catalyst in oxygen-hydrogen fuel cells. The demand of platinum exceeds the supply. This will cause problems for fuel cells, which are highly promising energy source for automobile..

Even though restorative dentistry dates back to ancient civilizations, it is, in a sense, a new art and one that is increasingly in demand. Indeed, restorative dentistry has become a multi-billion-dollar industry..

Humans depend on the forests largely to meet rapidly growing demands for timber, fibre, fuel, fresh water and food. All use forest produce in one form or other, e.g., when used as timber, paper, herbs and spices. Modern approaches in forest conservation have found that enforcement of fo..

It is the most important parameter indicating the pressure of population on land, water and other resources. Usually, higher population density (expressed as number of people (square kilometers) is found in urban areas than in rural areas. Regional disparities of density of population helps t..

Petroleum gas a by-product from two sources: natural gas processing and crude oil refining is a mixture of butane, propane and ethane. The main constituent of liquefied petroleum gas is, however, propane, propylene, butane, butylene in various mixtures. These hydrocarbons burn readily, producing a..

? One has not anticipated some of the impacts of industrial and technological advancement. When the industrial revolution started some 250 years ago, the world population was at 600 million - that seems like a lot of people but now the world population is now almost ten times at..