The most important problem faced by the modern world today is environmental pollution. Unless and until effective measures are adopted to prevent this grave problem‚ it is going to affect life on earth. Man has exploited the natural resources in order to meet the demands of the ever-increasing population and also to meet the requirements of industries. As the demand for basic things like food‚ water‚ clothes and shelter increased; man exploited natural resources like minerals‚ forests‚ water and
Free Oxygen Pollution Acid rain
Carbon nanotube 1 Carbon nanotube Carbon nanotubes (CNTs) are allotropes of carbon with a cylindrical nanostructure. Nanotubes have been constructed with [1] length-to-diameter ratio of up to 132‚000‚000:1‚ significantly larger than for any other material. These cylindrical carbon molecules have unusual properties‚ which are valuable for nanotechnology‚ electronics‚ optics and other fields of materials science and technology. In particular‚ owing to their extraordinary thermal conductivity
Premium Carbon nanotube
The Iron-Carbon Diagram There are two iron-carbon equilibrium diagrams: - stable iron-graphite Fe-Gr - metastable iron-cementite Fe-Fe3C The stable condition usually takes a very long time to develop. The metastable diagram is of more interest. Fe3C iron carbide called cementite because it is hard. Following phases exist on Fe-Fe3C diagram: - liquid solution of iron and carbon (L) - ferrite ( ) – an interstitial solid solution of carbon in Fe (bcc). At room temperature ferrite is ductile but
Premium Austenite Steel Iron
Explain how human activity can damage the environment (P1) Overcrowding: Overcrowding in houses can arise from several causes‚ and the physical and psychological effects on people living in overcrowded conditions can be quite severe. Overcrowding poses serious direct and indirect health risks to all segments of the population‚ particularly the elderly‚ young children‚ and the disabled. Overcrowding results in insufficient ventilation in homes‚ causing or exacerbating respiratory illness. Susceptibility
Premium Carbon dioxide Pollution Greenhouse gas
Introduction What is meant by environmental quality indoor (IEQ)? It is one of the sustainable buildings processors that working to increase productivity and performance of the buildings. In addition to providing a healthy environment for the occupants of the buildings provide them with comfort and the ability to control the circumstances surrounding them to avoid health injuries and increase productivity. In this article‚ we look at IEQ meaning‚ its importance‚ IEQ criteria‚ why are more employers
Premium Environment Productivity Indoor air quality
Tiffany Gallt Ms. Wing English 12 15 December 2012 Voting Age: Should it be reduced? The very idea of America is freedom and opportunity for everybody. Amongst these is the most valued legal right within a democracy: the right to vote. However‚ an unfortunate reality is that the majority of the people ages 16-17 cannot ("Age and Sex Composition in the United States: 2011"). With the ever falling number of participants in political votes due to the event of the generation of the baby boomers dying
Premium Political philosophy Democracy United States
many ways. The carbon cycle humans have impact the most. By burning fossil fuels we have increased atmospheric carbon dioxide by at least 35%. (Boorse‚ 2011). The impact that humans have had on this cycle has change many different elements of the natural environment. An example is the ozone layer is slowly being thinned out‚ which in turn is heating up the atmosphere of the earth. The thinning of the ozone layer is leading to changes with water level. The natural changes to the carbon cycle have been
Premium Oxygen Carbon dioxide Nitrogen
Landfill gas is generated during the decomposition of organic substances in municipal and industrial wastes. Since it is made up of powerful greenhouse gases‚ primarily methane gas and carbon dioxide‚ the prevention of escape to atmosphere is desirable and has the added benefit of being utilised as a renewable energy source (Clarke Energy‚ 2014). One such company focussed on dealing with this issue is Landfill Gas Industries Pty Ltd (L.G.I. Pty Ltd) they are ‘a specialist designer‚ supplier‚ installer
Premium Carbon dioxide Fossil fuel Greenhouse gas
landslide). It leads to financial‚ environmental or human losses. The resulting loss depends on the vulnerability of the affected population to resist the hazard‚ also called their resilience.[1] This understanding is concentrated in the formulation: "disasters occur when hazards meet vulnerability."[2] Environmental disasters are occurring with alarming regularity. But the management of such disasters has not kept pace at the required level. Major environmental disasters such as the 1952 London
Premium Human Natural disaster Petroleum
Environmental Pollution Samantha Arrieta SCI/256 November 5‚ 2013 Analila Lucero Environmental Pollution As an associate-level environmental scientist‚ many concerns have risen in regards to the environmental‚ climate‚ economical and social consequences. Because of overpopulated cities‚ there have been some negative factors. The focus to address these issues could be in addressing the weaknesses in already existing laws with stronger enforcement. In the following‚ I will present a summary
Free Pollution Environmentalism Air pollution