4.8.10+D++-+Explain+how+the+concept+of+supply+and+demand+affects+the+environment.

 __Sub-Standards for 4.8.10 D__   Population Density is defined as the number of individuals of a species per unit area or volume (Campbell and Reece, 2001). Cities, for example, have a much higher population density than rural areas (comparison of New York City to Lancaster County). Population density's relationship with resource use and management is a rather important one, for the higher the population density, the more resources needed for that area as well as management for the resources needed. Let's go back to the New York City/Lancaster County example. New York City has a much higher population density, thus is will need more resources and resource management. This also means that the prices of those resources, say for oil, would be higher than in your average suburb due to the high population density (this, again, also means that the resource managers will get paid more as a result to higher oil bills). In Lancaster County, however, the population density is much smaller, meaning that the resources will cost less than in a big city like New York (and yet again, the wages for the resource managers will depend on how much the resource actually costs the individual paying for them).
 * Identify specific natural resources for which societal demands have been increasing or human consumption has resulted in scarcity or supply.
 * Oil - $126 per barrel (Example of slow and increasingly high demands with slow and increasingly lower supply).
 * Coal - With rise in oil prices, coal prices are sinking (Example of mostly high supply with a lower demand).
 *  Agricultural Products - Supermarket Foods increase in price (Example of higher demand with a lower supply).
 * Natural Gases - Equilibrium of Supply/Demand
 * Solar Energy - Equilibrium of Supply/Demand
 *           Describe the relationship between population density and resource use and management.