The biggest disadvantage of modern transportation is the toll it takes on the environment in the form of pollution. Not only do vehicle emissions contain pollutants, but materials routinely needed for proper maintenance also pollute the environment.Continue Reading
Rubber tires, used motor oil, and other nonrecyclable or partially recyclable parts from vehicles usually end up in junk yards and landfills.
Another disadvantage of modern transportation in the cost associated with maintenance. The average cost to maintain a personal vehicle is estimated to be close to $10,000 annually per household. General repair and maintenance, combined with the cost of insurance, fuel and oil, adds up quickly. The average cost of $10,000 annually also increases if the vehicle is driven further than the average of 15,000 miles per year.Learn more about Population & Demography
Push factors, such as poverty within a community, limited access to education and employment, distance from resources, globalization, a person's ability to obtain better transportation in a new area, an increase in crime and the frequency of natural disasters, can affect the outgoing process of migration. Pull factors, such as higher standards of living and wages, labor demands and religious and political freedom, often dictate where migrants end up.Full Answer >
Neighborhood demographic reports are statistical breakdowns by categories that include crime rate, income levels, household distribution, means of transportation, population by citizenship and birthplace, education level, age, race and gender. Business owners and those looking to relocate may research potential markets and identify key factors using Census Bureau information.Full Answer >
Niche diversity refers to the evolutionary process in which species diverge in order to take advantage of open niches in their environment. This can be seen in areas where there are many very similar species that have radiated from a common ancestor.Full Answer >
Fossil fuels cause pollution when burned for use and when spilled during transport or mining. Burning fossil fuels is the largest producer of pollution.Full Answer >