Chlorofluorocarbon

gases making up our atmosphere. These gases in order of abundance are water vapour (H2O), carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and ozone (O3). Some other gases that only make up a tiny percentage of the atmosphere include Chlorofluorocarbons…

Characterizing the IR Reflecting Properties of Pigments for Cool Roofs Introduction The sun energy reaches earth as UV visible and Infra-red radiation. UV radiation is an invisible part of electromagnetic spectrum. Only 5 % UV from sun reached the surface is play the major role to the degradation of coating .Visible light wave (295-400 nm) seen by human eyes. Around 50% of the suns energy occurs in this region which gives the perception of colour.45 % of total solar energy is in IR region…

This reddish-brown toxic gas has a characteristic sharp, biting odor. NO2 is one of the most prominent air pollutants. Chlorofluorocarbons (CFCs): It is harmful to the ozone layer, and emitted from products currently banned from use. Carbon dioxide (CO2): It is a colorless, odorless, nontoxic greenhouse gas associated with ocean acidification, emitted from sources such as combustion…

Global Warming is the increase of earth’s average surface temperature and its oceans due to greenhouse gases released as people burn fossil fuels. These greenhouse gases, such as carbon dioxide and methane, this is an appositive phrase – it acts as a noun to specify green house gasses, and it must be set apart with commas. absorb heat that would otherwise bounce off the Earth’s surface. In the past two decades, when your sentence starts with a prepositional phrase that is more than four words,…

Scientific Breakthroughs” that have occurred in its 25 years, and nine of them came from space, eight directly from NASA. Breakthroughs that were on this list included NASA’s COBE probe mapping the fiery aftermath of the Big Bang and confirming that chlorofluorocarbons were eating the stratospheric ozone. Other inventions that are here with the help of NASA include infrared ear thermometers, artificial limbs, anti-icing systems for airplanes, devices that safely destroy landmines, firefighter…

connected with the rises of greenhouse gases on the ozone layer which cause the thinning of the layer. Ozone acts by absorbing the ultraviolet rays from the sun which prevent the earth from overheating. The increasing amount of carbon dioxide and chlorofluorocarbon (CFC) causes the rise of global climatic change. The actions that have been done recently in overcoming the emission of CFC however cannot ensure the full recovery of the ozone layer due to the past emission which still continue to…

Global warming is defined as a gradual increase in the overall temperature of the earth’s atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, Chlorofluorocarbons and other pollutants. (https://www.google.co.za/?gws_rd=ssl#q=what+is+global+warming). It can be argued that people have different views on the issue of global warming as to its effect which may be either good or bad. prominent believe that global warming is caused by human activities…

Nearly every battery in a phone, laptop or electric car is lithium based. The element lithium is a difficult substance to harvest. It must be evaporated from brine which is found in salt lakes. This brine is pumped from underground to the surface then allowed to evaporate in large pans before being separated by electrolysis. From there the lithium metal oxide is taken to a factory where it is made into battery cells [6]. At the factory the anode and cathode materials are separated for production…

Weather is a day-to-day change in the atmospheric condition such as temperatures and humidity. The climate is the observed weather for an extended period hence it identifiable with specific locations. The climate system is made of the elements such as biosphere (living organisms), cryosphere (ice sheets, oceans, and atmosphere) and geosphere (rocks, soils, and sediments).All these factors influence the changes in the movement of heat on the environment, which leads to climate change. The oceans…

The giant panda, also known as panda bear is a bear that is native to south central China. The scientific classification of the giant panda is that it originates from the kingdom: Animalia, phylum: Chordata, class: Mammalia, family: Ursidae, genus: Ailuropoda, and species: A. melanoleuca3. The giant panda has been added to the endangered species list in 2007. Conservation needs to be done by humans to prevent damage to the world that humans have caused. Without conservation, our lives will…