Natural environment is undoubtedly one of the major problems facing all the people inhabiting our planet. For many centuries the issue has been neglected by lots of nations and as a result it becomes more and more difficult to find a single unpolluted area on Earth. Taking that into consideration, we all know that we struggle against contamination and there is a great need to protect the environment. It is mainly because air, water and soil are unsuitable to sustain life.
Bearing in mind water, we know that the prognosis concerning it is rather gloomy. Sewage are dumped directly into rivers and the sea . Some countries do not even have enough safe water to drinking, China is among them. Furthermore, in some areas of the world, for example , in Peru , there are some people who purchase the