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Презентация на тему The Problem of the Ozone Layer

Содержание

The ozone layer is a layer in the Earth's atmosphere which contains high concentrations of ozone.
The Problem of the Ozone LayerThe project of the The ozone layer is a layer in the Earth's atmosphere which contains Ozone absorbs harmful ultraviolet radiation which is produced by the Sun and Ground based measurements of Ozone were first started in 1956, in at Halley Bay, Antarctica. Comprehensive satellite measurements of ozone started in 1978 with the Nimbus-7 satellite. “Nimbus -7” was equipped with devices for air pollution's investigation. The Nimbus In 1985 the first ozone hole was discovered by the British scientists over Antarctica. In spring 1998 the hole of South Polar Region mounted to the biggest area. Biological effects of the ozone holes.The ultraviolet radiation can get on the Animals and plants suffer when the level of the ultraviolet radiation rises, An increase of UV radiation effects on plant growth, thus reducing agricultural It is known that in August 2010 the ozone hole appeared above Firstly, the launches of space rockets,Reasons of ozone layer depletion. planes, that fly on the altitude of 12 – 15 kmplanes, and supersonic planes damages the ozone layer a lot. Secondly, the use of the natural resources produces lots of chemical compounds. Cars and bus send more and more smog in the air. One more source of organic pollution of atmosphere become a communal economy of cities. Large amounts of gas called CFCs were produced in the twentieth century The sources of natural destroyers of the ozone layer are also mud volcanoes. Scientists' forecasts about the future of ozone holes are different. Some scientists Some scientists think that the ozone holes' disappearance would speed up the Protection of the ozone layer.Governments of many countries recognized the problem of I hope that we can solve the problem of the ozone
Слайды презентации

Слайд 2 The ozone layer is a layer in the

The ozone layer is a layer in the Earth's atmosphere which

Earth's atmosphere which contains high concentrations of ozone.

Слайд 3

Слайд 4 Ozone absorbs harmful ultraviolet radiation which is produced

Ozone absorbs harmful ultraviolet radiation which is produced by the Sun

by the Sun and protects humans and other living

things from it.

Слайд 5 Ground based measurements of Ozone were first started

Ground based measurements of Ozone were first started in 1956, in at Halley Bay, Antarctica.

in 1956, in at Halley Bay, Antarctica.

Слайд 6 Comprehensive satellite measurements of ozone started in 1978

Comprehensive satellite measurements of ozone started in 1978 with the Nimbus-7

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

“Nimbus -7” was equipped with devices for air pollution's investigation. The

pollution's investigation. The Nimbus measurements made clear how severe

the ozone hole problem was.

Слайд 8 In 1985 the first ozone hole was discovered

In 1985 the first ozone hole was discovered by the British scientists over Antarctica.

by the British scientists over Antarctica.

Слайд 9 In spring 1998 the hole of South Polar

In spring 1998 the hole of South Polar Region mounted to the biggest area.

Region mounted to the biggest area.

Слайд 10 Biological effects of the ozone holes.
The ultraviolet radiation

Biological effects of the ozone holes.The ultraviolet radiation can get on

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 11 Animals and plants suffer when the level of

Animals and plants suffer when the level of the ultraviolet radiation

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 12 An increase of UV radiation effects on plant

An increase of UV radiation effects on plant growth, thus reducing

growth, thus reducing agricultural productivity, for example, crops of

rice.

Слайд 13 It is known that in August 2010 the

It is known that in August 2010 the ozone hole appeared

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 14 Firstly, the launches of space rockets,
Reasons of ozone

Firstly, the launches of space rockets,Reasons of ozone layer depletion.

layer depletion.

Слайд 15 planes, that fly on the altitude of

planes, that fly on the altitude of 12 – 15

12 – 15 km
planes, that fly at the altitude

of 12 – 15 km

Слайд 16 and supersonic planes damages the ozone layer a

and supersonic planes damages the ozone layer a lot.

lot.

Слайд 17 Secondly, the use of the natural resources produces

Secondly, the use of the natural resources produces lots of chemical compounds.

lots of chemical compounds.

Слайд 18 Cars and bus send more and more smog

Cars and bus send more and more smog in the air.

in the air.

Слайд 19 One more source of organic pollution of atmosphere

One more source of organic pollution of atmosphere become a communal economy of cities.

become a communal economy of cities.

Слайд 20 Large amounts of gas called CFCs were produced

Large amounts of gas called CFCs were produced in the twentieth

in the twentieth century for use in everyday appliances

like fridges, aerosol spray cans, and fire extinguishers.

Слайд 21 The sources of natural destroyers of the ozone

The sources of natural destroyers of the ozone layer are also mud volcanoes.

layer are also mud volcanoes.

Слайд 22 Scientists' forecasts about the future of ozone holes

Scientists' forecasts about the future of ozone holes are different. Some

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 23 Some scientists think that the ozone holes' disappearance

Some scientists think that the ozone holes' disappearance would speed up

would speed up the global rise of temperature.

Слайд 24 Protection of the ozone layer.
Governments of many countries

Protection of the ozone layer.Governments of many countries recognized the problem

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

I hope that we can solve the problem of 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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