Ecology Or Technology

Слайд 2

Ecological Problems

Ecology is a science about nature surrounding us.

The main ecological problems are:

Слайд 3

Many rivers and lakes nowadays are polluted with different waist products, which are very harmful for plants and animals living in them. Some species are extinct today. Water in the majority of rivers and lakes has become undrinkable.

In big industrial towns and cities the air is very dirty. Sometimes people have to close the windows not to let it in. When it is not windy smog is hanging over the city and people breathe in poisonous substances.

Some waist products are buried in the ground , they poison soil and make harm to the plants which grow on it .

Слайд 4

Where Does Acid Rain Come from?

People have leaved on the Earth for thousands of years. They tried to make their life safer, easier and more comfortable. They have built big houses, huge factories and plants, lots of different cars and machines and power stations.

Слайд 5

Where Does Acid Rain Come From?

The smoke from cars, factories and power stations go into the air. This smoke contains sulphur dioxide and nitrogen oxide. These substances mix with water vapour in the atmosphere and form sulphuric acid and nitric acid. Sunlight turns these acids into poisonous oxidants which fall in rain or snow onto the trees.

Слайд 6

How Does Acid Rain Influence Trees?

Acid rain influences deciduous trees like oak, beech and birch as well as coniferous trees like fir and pine. First the branches turn yellow and brown. Then the trees" needles or leaves fall. The roots and trunk shrink. Finally trees die. In the Black Forest in southern Germany 75% of the trees have been damaged or killed.

Слайд 7

Why Are Trees So Important ?

Trees are important because they provide a home for many other plants, and animals too. They protect the flowers which grow on the forest floor. They provide food for insects, reptiles, birds and mammals. They protect the soil from the wind and the rain. Most important of all, the forests are the lungs of the planet. Trees produce the oxygen which we breathe. If the trees die, we will, too.

Посмотреть все слайды

Cлайд 1

Cлайд 2

Cлайд 3

Cлайд 4

Cлайд 5

Cлайд 6

Cлайд 7

Cлайд 8

Cлайд 9

Описание презентации по отдельным слайдам:

1 слайд

Описание слайда:

2 слайд

Описание слайда:

ECOLOGICAL PROBLEMS Plan: Man-the child of nature Ecological problems Discourse about the problems Ecological organizations Conclusion

3 слайд

Описание слайда:

Man-the child of nature We live on a very beautiful planet – on the Earth. Our planet has very rich resources: the bright blue of the sky, fresh, crystal-clear mountain lake water, the rich green of the mountains slopes, wild flower, picturesque views – all these sceneries of nature fill us with admiration. That’s why those who live in cities prefer spending their days off and their holidays far from the noise of the city, to be closer to nature. Perhaps they like to breathe fresh air or to swim in clear water because the ecology is not so poor as in the cities.

4 слайд

Описание слайда:

Ecological problems Ecology is the study of the ways in which organisms (plants and animals) depend upon each other and upon their surroundings. Each organism requires conditions in order to be able to live and breed. These conditions are its environment by changing the ecological conditions.

5 слайд

Описание слайда:

So, pollution is one of the most burning problems of nowadays. Now millions of chimneys, cars, buses, trucks all over the world exhaust fumes and harmful substances into the atmosphere. These poisoned substances pollute everything: air, land, water, birds, animals and people. So, it is usually hard to breathe in the large cities where there are lots plants. Everything there is covered with soot and dirt. It affects harmfully on people’s health.

6 слайд

Описание слайда:

Water pollution is very serious, too. Ugly rivers of dirty water are polluted with factory waste, poisoned fish are all-round us. And polluted air and poisoned water lead to the end of the civilization. So, nowadays a lot of dead lands and lifeless areas have appeared. Because our actions and dealings can turn the land to a desert.

7 слайд

Описание слайда:

The Baltic Sea is a special case. Because it is such a small sea and it becomes dirty very easily. Its waster changes slowly through the shallow straits. As many as 250 rivers run into the Baltic. There are hundreds of factories in these rivers and millions of people live along them. Quite a lot of big cities lie on its coast. All these combined with the active navigation of the sea naturally affects the state of the sea water and the shore line flora and fauna. People suffer from the waster pollution; cancer deaths increase people’s concern.

Описание слайда:

And there is no escape from this ecological crisis without organizing a single body dealing with the environmental problems, developing and carrying out a nationwide program of environmental protection and co-operating with international schemes.

9 слайд

Описание слайда:

Discourse about problem So, we see that our environment offers an abundance of subject matter for discussion. The problems and prospects of the blue planet interest not only scientist and futurologists, but also politicians, industry, the public – and above all, young people! There is hardly a young person who is not conserved with the preservation of our natural habitat. To recognize environmental problems and master them, to reduce and avoid environmental pollution, to discover and develop ecologically sound technologies – there are the essential building blocks for our future.

10 слайд

Описание слайда:

Whether scientist or politicians, bankers or students, whether Greek, Norwegian, Hungarian or Finn … all are encouraged to make a contribution towards protecting the environment. Dedication and the courage to change one’s way of thinking are called for.

11 слайд

Описание слайда:

Population Fears Scientists now predict that by the year 2050 the population will be doubled what is today. The fact remains that the rate of food production fell behind population growth in many of developing countries. The annual fish catch already exceeds what the world ‘s oceans can successfully sustain. If we go on using our natural recourses at today’s rates, we will have used up the entire reserves of cooper, natural gas and oil by the year 2054.

12 слайд

Описание слайда:

But the problem ahead lie not so much in what we use but in what we waste. What faces us is not so much a recourse crisis as a pollution crisis. The only solution is to try to change the areas of consumption, technology and population. Changes in technology must be baked by slower population growth. And it can be achieved by education in health and women’s rights. And there is a little hope of reducing consumption over the next half century.

Описание слайда:

Nowadays there are many different pressure and interests groups in the world, which try to find solutions to the problems of pollution at the national and international level. So they are groups of people with a common interest in trying to draw the public attention to environment problems, to influence the government decisions.

Описание слайда:

Ecological organizations There are many ecological organizations in the world, but I can tell you only about seven of them, because they are most famous. At first I’ll tell you about “Kids F.A.C.E”. The main mission of “Kids F.A.C.E” is to provide information, to encourage and facilitate youth’s involvement with effective environmental action. Membership of organization is free for all. “Kids F.A.C.E” started in 1989.

15 слайд

Описание слайда:

Greenpeace is an organization whose members work actively to protect the environment from damage, caused by industrial processes or military activities. Greenpeace has been campaigning against environmental degradation since 1971.

16 слайд

Описание слайда:

PeTA (people for the ethical treatment of animals) is one of the largest animal right organization in the world. PETA is dedicated to establishing and protecting the right of all animal. This organization focuses their attention on the areas in which the largest numbers of animals suffer more intensely for the longest periods of time. Founded in 1980.

17 слайд

Описание слайда:

ISSG (invasive species specialist group) aims to reduce threats to natural ecosystems and the natural species they contain by increasing awareness of invasive alien species. ISSG is a global group of scientific and policy experts on invasive species from 41 countries.

18 слайд

Описание слайда:

RSPCA (the Royal Society for the Prevention of Cruelty to Animals) has been working since 1824,promoting kindness to animals, trying to prevent cruelty to them. This organization called the Royal Society for the Prevention of Cruelty to Animals because Queen Victoria gave her permission for the RSPCA to be called that.

19 слайд

Kinds of pollution

Destroying forests.

Water pollution.

Noise pollution.

• AIR POLLUTION. Destroying forests. Water pollution. Oil spills. Global warming. Litter. Chemicals. Coral reefs. Noise pollution.

Environmen t al questions

• What does the life of the people on Earth depend on?

• Why are some animals and birds disappearing nowadays?

Air pollution is a very serious threat to our environment.

pollute the air.

• This is the result of human activities: oil spills. Polluted water also causes water animals to die.

• Environmentalists are worried because many coral reefs are disappearing. Today only 7% of Jamaica’s coral reefs remain and the reefs in the Philippines and Western Indonesia are almost extinct. Tourists damage reefs by putting
• rubbish into the sea.

Ecological situation in our place.

• I’m worried about the state of the Nekhvoroshcha-novka pond in my area. When I visi-

ted this place in summer I was hurt and disap- pointed by what I found. Water was very muddy.

Our attitude towards the environment .

We must keep our native place clean. If we see litter on the ground, we must put it into a litter bin. And of course we must not draw on walls

• We must keep our native place clean. If we see litter on the ground, we must put it into a litter bin. And of course we must not draw on walls or trees.

Code of Ecological Rules.

• Do not leave litter.
• Keep the country tidy.
• Respect the life and work of the countryside.
• Grow trees and flowers.
• Do not cut wild flowers.
• Put litter away.
• Do not frighten birds and animals.
• Do not burn fires.

The Earth is Our Home.

• The Earth is a garden. It is a beautiful place For all living creatures, For all human race.
• Food is a treasure From the soil and the seas Clean fresh air From the plants and the heels.

• Helping mother Earth We can peacefully roam We all deserve a place We can call our home.

• The warmth of the sun Turns water into rain It is nature way!

Th е presentation was done by Valentina Antonova. Class 9 V

Чтобы пользоваться предварительным просмотром презентаций создайте себе аккаунт (учетную запись) Google и войдите в него: https://accounts.google.com

Подписи к слайдам:

Ecological Problems Pollution and protection of our environment

Ecology is a science. Many sciences have such prefix. What does it mean “Eco”? “ Eco” means “home" in Latin language. It’s a science about our mutual home – about nature. Science, which teachers us to treat very carefully to our homeland. Environment – is surroundings we live in .

People have always polluted their surroundings . Even in ancient times people admitted that their health was depending on the state of surroundings. But only in XX century humanity, in full measure, realized , that many diseases are closely connected with the air and water pollution and inferior products.

Ecological problems air pollution water pollution soil pollution

Air pollution . Air pollution is a very serious problem, because polluted air can cause illness and even death. Every year world industry pollutes the atmosphere with about 1500 million tons of dust and other harmful substances. Many cities suffer from smog, the oxygen balance upsets. Cars are polluting the air by exhaust gases and other dangerous chemicals.

Virtually not only human beings pollute the air but nature itself can cause damage , for example volcanic eruptions . But the consequences after volcanic eruptions aren’t so harmful as human beings , in contrast to human activities , these processes are always reversible – thought after a while the atmosphere will recover in former structure .

Water pollution Water recourses is one of the main factor of existing life in our planet . People use fresh water for their needs. It is more than 2% of hydrosphere volume . First of all water pollution is the result of industrial, agricultural and everyday necessities discharge of wastes into rivers, lakes and seas. The main part of water pollution plays a large number of oil industry wastes .

Soil pollution The main component of the Earth biosphere represents topsoil . Soil is polluted by: litter, wastes , heavy metals, pesticides, radioactive elements. Sinking aerosol may contain heavy poisonous metals and it may lead to plants’ ruin .

Modern ecological problems greenhouse effect

Ways of solving ecological problems Creation of different kinds of purification plants ; Recycling.

III Using of conservation technologies and rational distribution of industry . Creation of purification territorial systems .