Air pollution is the bigest problem in the world

Olden time’s people lived in accord with the nature. Later, when the humanity have created powerful machines, various chemical materials, learned to govern the nuclear energy, their appeared lots of ecological problems. The most important elements of our surroundings ­ air, water and soil are more and more polluted.The number of people is increasing very fast in the world nowadays. The matter is that they need more and more working places, food, clothes, cars, planes... That’s why the pollution of the nature increases. Polluted nature has a negative influence not only for the people’s health, but for the inheritance of the civilisations culture, too. The famous architectural buildings in all the world suffered from the acid rain more during the last 30 years, than during 300 years up to this. Air becomes polluted in many ways. Cars, trucks, buses, airplanes, factories and plants send burnt gases into the air. The production of electricity causes not only air pollution but acid rains and global warming. Because of acid rains the Earth looses twenty million acres of tropical rainforests every year. This means the extinction of thousands of species that live there, for example tigers, only 67 thousand tigers have remained. Tigers are hunted and killed for their body parts, which are used in oriental medicines. The ozone layer is destroyed too and the dangerous rays get through the atmosphere causing skin cancer and other diseases.
Air is the ocean we breathe. Air supplies us with oxygen which is essential for our bodies to live. Air is 99.9% nitrogen, oxygen, water vapor and inert gases. Human activities can release substances into the air, some of which can cause problems for humans, plants, and animals. There are several main types of pollution and well-known effects of pollution which are commonly discussed. These include smog,...

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