Содержание
- 2. The ozone layer is a layer in the Earth's atmosphere which contains high concentrations of ozone.
- 4. Ozone absorbs harmful ultraviolet radiation which is produced by the Sun and protects humans and other
- 5. Ground based measurements of Ozone were first started in 1956, in at Halley Bay, Antarctica.
- 6. Comprehensive satellite measurements of ozone started in 1978 with the Nimbus-7 satellite. The creation of the
- 7. “Nimbus -7” was equipped with devices for air pollution's investigation. The Nimbus measurements made clear how
- 8. In 1985 the first ozone hole was discovered by the British scientists over Antarctica.
- 9. In spring 1998 the hole of South Polar Region mounted to the biggest area.
- 10. Biological effects of the ozone holes. The ultraviolet radiation can get on the Earth through such
- 11. Animals and plants suffer when the level of the ultraviolet radiation rises, too. A November 2010
- 12. An increase of UV radiation effects on plant growth, thus reducing agricultural productivity, for example, crops
- 13. It is known that in August 2010 the ozone hole appeared above Europe. The concentration of
- 14. Firstly, the launches of space rockets, Reasons of ozone layer depletion.
- 15. planes, that fly on the altitude of 12 – 15 km planes, that fly at the
- 16. and supersonic planes damages the ozone layer a lot.
- 17. Secondly, the use of the natural resources produces lots of chemical compounds.
- 18. Cars and bus send more and more smog in the air.
- 19. One more source of organic pollution of atmosphere become a communal economy of cities.
- 20. Large amounts of gas called CFCs were produced in the twentieth century for use in everyday
- 21. The sources of natural destroyers of the ozone layer are also mud volcanoes.
- 22. Scientists' forecasts about the future of ozone holes are different. Some scientists predict that the every-year
- 23. Some scientists think that the ozone holes' disappearance would speed up the global rise of temperature.
- 24. Protection of the ozone layer. Governments of many countries recognized the problem of ozone depletion, and
- 25. I hope that we can solve the problem of the ozone layer together by education people
- 27. Скачать презентацию