environment - a set of components of the environment, natural and man-made natural objects and man-made objects.components of the environment - land, minerals, soils, surface and ground water, air, flora, fauna and other organisms, as well as the ozone layer of the atmosphere and near-earth space, providing a set of favorable conditions for the existence of life on earth.pollution - into the environment of matter and (or) energy, property, location or number of which have a negative impact on the environment.contaminant - a substance or mixture of substances, the number and (or) concentrations exceed established for chemical substances, including radioactive and other substances and microorganisms standards and have a negative impact on the environment.air pollution - a really serious problem. air is composed of oxygen, nitrogen, water vapor, and, thanks to our civilization, of a variety of toxic particles. the more of these particles in the air is, the less room is left in the atmosphere for oxygen. the problem of air pollution is not limited to the space outside. the air inside our homes and offices can be as dangerous to your health. the main source of pollution - cigarette smoke, but it is not the only one. toxins are allocated even when you just cook. every time you scratch the teflon non-stick coating is allocated enough toxins to kill a canary. greenhouse effect, which we all have been associated with the phenomenon of global warming, caused by toxic gases. the main enemy of clear atmosphere - methane. it is released from the decomposition of sewage.greatly affects our waterways. in every neighborhood, in every city there drain sewer, storm water from the highways and municipal enterprises directly into the river. everything goes into the water, passing minor cleaning steps.
ответ:
i want to touch upon the problem of modern technologies. to my mind, people can’t live without them. tv, telephones, radio, the internet, e-books, and many other devices are very useful and important things in our life.
so, firstly, modern technologies give us much information about the world. sitting at home we can learn all news and all details about any event. the use of modern technologies is one of the best ways to explore the world.
secondly, thanks to modern technologies we can communicate with people, to write letters, to find new friends. it is a real pleasure. when you miss your family, you can call and see the people who are dear to you using skype.
thirdly, with the help of modern technologies we can gain different knowledge. we can study various subjects. we can learn everything. it simplifies our life. modern technologies have a lot of pros, but they have some cons too. you should mind that they may damage your health. but, to my mind, they still have more pros than cons.
thanks to the internet you can do almost everything. you can watch movies, play games, make various projects, buy many things, read books, and do many others.
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environment - a set of components of the environment, natural and man-made natural objects and man-made objects.components of the environment - land, minerals, soils, surface and ground water, air, flora, fauna and other organisms, as well as the ozone layer of the atmosphere and near-earth space, providing a set of favorable conditions for the existence of life on earth.pollution - into the environment of matter and (or) energy, property, location or number of which have a negative impact on the environment.contaminant - a substance or mixture of substances, the number and (or) concentrations exceed established for chemical substances, including radioactive and other substances and microorganisms standards and have a negative impact on the environment.air pollution - a really serious problem. air is composed of oxygen, nitrogen, water vapor, and, thanks to our civilization, of a variety of toxic particles. the more of these particles in the air is, the less room is left in the atmosphere for oxygen. the problem of air pollution is not limited to the space outside. the air inside our homes and offices can be as dangerous to your health. the main source of pollution - cigarette smoke, but it is not the only one. toxins are allocated even when you just cook. every time you scratch the teflon non-stick coating is allocated enough toxins to kill a canary. greenhouse effect, which we all have been associated with the phenomenon of global warming, caused by toxic gases. the main enemy of clear atmosphere - methane. it is released from the decomposition of sewage.greatly affects our waterways. in every neighborhood, in every city there drain sewer, storm water from the highways and municipal enterprises directly into the river. everything goes into the water, passing minor cleaning steps.