Презентація на тему «Environment problems»
Pollution in the WORLD
Since ancient times Nature has served man, being the source of his life. For thousands of years people lived in harmony with environment and it seemed to them that natural riches were unlimited. But with the development of civilization man's interference in nature began to increase.
Pollution is very important problem in the world. Around us, there is lot's of rubbish water is unhealthy and air is not clean.
Garbage around us
Every year world industry pollutes the atmosphere with about 1000 million tons of dust and other things. As a result some rare species of animals, birds, fish and plants disappear forever.
People drop litter around and they don't think about consequences. We should take thought about saving the environment. Because it is one of the biggest gifts of the life. We should try, to stop pollution growing.
One of the problem is acid rain with disastrous effects. This problem is formed of acid gas, because factories and cars throw out this in the air. What can we do? In my opinion, factories must be with filters, to made oxygen from the dioxide, also cars must be with filters, too. Jet planes produce condensation trails. During night-time, they can heat our planet dozens of times more than the carbon dioxide produced by the same flight at daytime. During daytime, contrails have a slight cooling impact. Avoid fling at night or late in the evening.
Jet planes produce condensation trails. During night-time, they can heat our planet dozens of times more than the carbon dioxide produced by the same flight at daytime. During daytime, contrails have a slight cooling impact. Avoid fling at night or late in the evening.
Firstly, acid rain will destroy the plants and then we will don't get the oxygen; secondly we will die, because we will not can breathe. In Europe, the main cause of the acid rain is caused by the release of sulphur dioxides, so little by little, in the rivers and oceans lots of fish will die.
Earth life is water
Water provides for use in homes, for irrigation, for extinguishing fires, for street cleaning and for many other purposes. Clean and fresh water need everything, what is alive, but we don't care about this.
Today, many of rivers, oceans and seas become to easiest way to throw out the sewages. People think badly, that sewages will disappear. The best way is the recycle sewages, or totally destroys it.
Planet Earth is our home - keep it!