of the student of Class 7
Kasachkova AlinaThe Center of Children's Creation "Sviblovo“
Moscow
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The Problem of the Ozone Layer
Содержание
- 1. The Problem of the Ozone Layer
- 2. The ozone layer is a layer in
- 3. Слайд 3
- 4. Ozone absorbs harmful ultraviolet radiation which is
- 5. Ground based measurements of Ozone were first started in 1956, in at Halley Bay, Antarctica.
- 6. Comprehensive satellite measurements of ozone started in
- 7. “Nimbus -7” was equipped with devices for
- 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
- 11. Animals and plants suffer when the level
- 12. An increase of UV radiation effects on
- 13. It is known that in August 2010
- 14. Firstly, the launches of space rockets,Reasons of ozone layer depletion.
- 15. planes, that fly on the altitude
- 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
- 21. The sources of natural destroyers of the ozone layer are also mud volcanoes.
- 22. Scientists' forecasts about the future of ozone
- 23. Some scientists think that the ozone holes'
- 24. Protection of the ozone layer.Governments of many
- 25. I hope that we can solve
- 26. Слайд 26
- 27. Скачать презентанцию
The ozone layer is a layer in the Earth's atmosphere which contains high concentrations of ozone.
Слайды и текст этой презентации
Слайд 1The Problem of the Ozone Layer
The project
of the student of Class 7
Kasachkova Alina
Слайд 2The ozone layer is a layer in the Earth's atmosphere
which contains high concentrations of ozone.
Слайд 4Ozone absorbs harmful ultraviolet radiation which is produced by the
Sun and protects humans and other living things from it.
Слайд 6Comprehensive satellite measurements of ozone started in 1978 with the
Nimbus-7 satellite. The creation of the program “Nimbus” (there were
7 satellites) was begun by NASA in the 70‘s years.
Слайд 7“Nimbus -7” was equipped with devices for air pollution's investigation.
The Nimbus measurements made clear how severe the ozone hole
problem was.
Слайд 10Biological effects of the ozone holes.
The ultraviolet radiation can get
on the Earth through such holes. It leads to a
number of serious health risks for humans. It causes eye cataracts, skin cancer and immuno-suppression.
Слайд 11Animals and plants suffer when the level of the ultraviolet
radiation rises, too. A November 2010 report by scientists at
the Institute of Zoology in London found that whales off the coast of California had shown a sharp rise in sun damage.
Слайд 12An increase of UV radiation effects on plant growth, thus
reducing agricultural productivity, for example, crops of rice.
Слайд 13It is known that in August 2010 the ozone hole
appeared above Europe. The concentration of ozone declined by 10-15%
there. In October 2010 NASA’s satellite recorded the appearance of the ozone hole which stretched from Britain to Western Siberia and from Scandinavia to the Black Sea. By 7 November the ozone hole had skinned over.
Слайд 15 planes, that fly on the altitude of 12 –
15 km
planes, that fly at the altitude of 12 –
15 km 
Слайд 20Large amounts of gas called CFCs were produced in the
twentieth century for use in everyday appliances like fridges, aerosol
spray cans, and fire extinguishers.
Слайд 22Scientists' forecasts about the future of ozone holes are different.
Some scientists predict that the every-year depletion of the ozone
layer will continue. Others said that the ozone layer would be restored by 2050.
Слайд 23Some scientists think that the ozone holes' disappearance would speed
up the global rise of temperature.
Слайд 24Protection of the ozone layer.
Governments of many countries recognized the
problem of ozone depletion, and therefore, united in 1987 to
sign the Montreal Protocol to reduce the amount of CFCs, and so to protect the ozone layer.
Слайд 25 I hope that we can solve the problem of
the ozone layer together by education people and the practice
of ozone smart behavior. For if our society acts now, future generations will live on a safe and healthy planet.
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