Insert articles where necessary: Vitamins are essential ingredients of ... food but are only needed in minute quantities. There are many different vitamins but ... most important for examination purposes are vitamins B, C and D.
Vitamin B is really ... complex of related vitamins found in cereals and liver. They take part in ... production of energy from digested food and in ... formation of red blood cells.. Deficiency may cause ... anaemia.
Vitamin C, found in fresh fruit and vegetables, is necessary for the formation of capilary blood vessels. Deficiency leads to bleeding and ... gum disorders.
Vitamin D is present in ... meat fat, fish and dairy products. It is necessary for bone and tooth formation and ... deficiency may affect their structure.
In defense of unrestricted internet access, the use of technology as an education tool is undeniable. Through computers, children can be presented with interactive and dynamic learning environments in which play and education can coexist. There are many websites which cater for the younger surfer yet still have a strong educational focus.
In addition, experts have used computers to improve the quality and efficiency of various products. For instance, today, most of cars possess small computers that help improve their safety and therefore, improve their quality. My car has a small computer that can determine if the car is out of control. If it is, the computer will take action and alter the speed of tires so that it will regain control. Cars represent just one example of how computer have positevely impacted our lives.
Based upon all the arguments mentioned above, it is evident that using technology devices is beneficial in terms of searching for necessary information, studying online and using electroning gadgets. In short, computers have contributed much to humankind development
Nowadays people use the computer increasingly more, so it i a very useful invention which makes our life easier every day. It obviously has many advantages but there are also some minuses. My personal opinion is that computers have greatly improved the quality of our life.
On the one hand, computers enable us to reduce the number of books or papers in our jobs . If you have a powerful computer nowdays, you can store a lot of information in its hard disk. Besides, if you have a portable computer, you can do a lot of thing such as read, type ect. wherever you are. Another advantage is that computers are easier to use than before, because they have too many things to make it work. As a final point, the international network can be quite useful. If you have the Internet access, you will be able to visit millions of websites to gather any kind of information you need.
On the negative side, the computer might be a serious threat to children. Children mostly use these devices for fun but lots of games teach them to be violent. Moreover, spending too much time in front of the screen is harmful to eyes – more and more young people have to wear glasses! Finally, we all know that the Internet has many advantages but a virus may infect your computer and make you devise useless.
In conclusion, I can say that computers have had a positive influence on our lives today but we need to be careful about how to use them because they can take over our lives by forcing us to do things which are not really harmless for our health.