6
Work in groups. Read and discuss the following.
Scientists understand a lot about environment but they don't
understand everything. Every year there are big and small disasters
in different parts of the world. Some of these happen very often, but
some of them are a big shock. How do these natural disasters affect
humans? Can we do anything about them?
2) Has she ever visited Rome? - No, s She's never visited Rome but she has visited Madrid.
3) Have you ever seen this picture? - No, I’ve never seen this picture but I have seen its reproduction.
4) Have you ever received a letter from her? - No, I’ve never received a letter from her but I ahve received a postcard.
5) Has your friend ever travelled abroad? - No, he's never travelled abroad but he has travelled in this country.
6) Have you ever driven a big car? - No, I’ve never driven a big car but I have ridden a bicycle.
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.