The need of Vitamin C 

  It is reported that there are various significant effects of Vitamin C on health. First of all, it is one of the most forceful antioxidants. It prevents free radicals to aid fighting cell and tissue harm, and it helps the body fighting contagion. In addition, it is necessary for both of the expectant mother and baby as it helps them stay healthy for nine months. Moreover, it is needed for inner-body destruction. Finally, it produces collagen that gives structure to bones, cartilage, muscle and blood vessels (Hareyan, 2005: 1).

Reference:

          Hareyan, A. (2005). Why do we need C? [Online]. Available:

                    http://www.emaxhealth.com/76/1144.html [15 January, 2012].

Climate Change

          It is said that there are various causes and effects of the climate change people have to realize; rising temperatures, thawing ice and glaciers, and climatic change. Rising temperatures influence various features of weather. Thawing ice and glaciers produce the rising sea levels in worldwide. A climatic change could also impact health and welfare of humans (Congondis, 2011: 1-5).

Reference:

          Congondis, D. (2011). Fact about Climate Change. [Online]. Available: 

                    http://www.thegreatwarmimg.com/pdf/ClimateChangeFactsheet.pdf.

                    [2011, August 28].

      

Computers under Attack

          It is said that there are three sorts of virus that harm any computer users. One sort is known as a Trojan Horse that is created to take credit card details or bank passwords. Other hazard sort of virus is a Spyware that compiles data about the computer's owner. The last one, less hazardous trouble is Spam that is used to trick people and to obtain money from them (Philpot, 2011: 47).

Reference: Philpot, S. (2011). “Computers under Attack.” Academic Skills. Oxford: Spain