Презентация на тему Ecological problems

pollution.
Radiation.
Earthquakes.
The problem of forests felling.
The problem of biological variety.
Global

warming.
The hole in the ozone layer.
Instruction.
Ways of removal and utilization of the rubbish.
Conclusion.

determine the main problems.
To give advices for keeping our

environment clean.
To show different ways of solving of ecological problems.

Aim:
To introduce with global
ecological problems.

home for living beings, common for all the humanity

forever.
The number of the planet’s population is in increasing constantly, but the technical progress not only for the people’s welfare, but also threatens the life itself. When people pursue great profits, they often act unwisely- destroy nature, pollute the environment. The poisoning of air, land and oceans is the fastest spreading disease of civilization.

a community problem. Cars, trucks, buses and airplanes are

the worst polluters. They send partly burned gases into the air. Air can be also polluted by smoke and gases from factories. Dirt, smoke, and gases in the air may be carried away by wind and by air currents, or settle over as a blanket of smog.

by dumping wastes into lakes, rivers, and other bodies

of water. Harmful wastes may also get into the soil or drain off fields that have been sprayed with pesticides. Pesticides are often used to kill insects and weeds in cities or on farms. Polluted water can spread many diseases.

the main problems. There are some atomic power stations

in our country. It is even a greater disaster for the world. We all remember about Chernobyl catastrophe and its tragic results. Many people, who fought against that fire and received a certain doze of radiation are invalids now.

forecast them
and many scientists devote themselves

to
protect our lives.

forests are disappearing because they are
cut

down or burnt. If this trend continues, one
day we won’t have enough oxygen to breathe,
we won’t see a beautiful green forests at all.

ten minutes one kind of animals, plants or insect

dies out forever. If northing is done about it, one million species that are alive today may soon become extinct.

Cheeta Snow leopard Koala

Animals from Red Book. WE MUST SAVE THEM!

gasoline, oil, coal, or every natural gas, more carbon

dioxide is added to the atmosphere. The greenhouse effect is what causing the temperate of the Earth to rise, and creating many problems that will begin to take place in the coming decades.




1900 2000

Ozone absorbs harmful ultraviolet radiation which is produced by

Sun. Ultraviolet radiation can damage cells of living things- plants, animals and people. The damage of ozone has been caused by complex chemical reactions involving chlorine and bromine.


1979 2000

drinks in plastic bottles.
Save your family newspapers. Find out

how
to recycle newspapers in your area.
Save water: the best time to water is early
is morning. If there is the leaky tap in your
house, get someone to fix them.
Turn off the lights when you leave the room.
Turn off the TV or stereo when you are not
watching or listening.
Don’t cut wild flowers.

How can we keep our earth clean?
Don’t buy drinks in plastic bottles.
Save your family newspapers. Find out how
to recycle newspapers in your area.
Save water: the best time to water is early
is morning. If there is the leaky tap in your
house, get someone to fix them.
Turn off the lights when you leave the room.
Turn off the TV or stereo when you are not
watching or listening.
Don’t cut wild flowers.

1961. At first it was a
small group of

people who wanted to raise to save
animals and plants. Today the WWF was raised
over 35 million for conservation projects and has
created or given support to National parks in 5
continents. It has helped 30 mammals and birds to
survive.
There are a lot of nature centers in all the
countries of the world, such as: “Friends of the
Earth”, “Green peace”, “Trust” and many others.

Every day people throw away amazing amounts
of

garbage and trash. Trucks take the garbage to
the out-of-the-way places. Sometimes the trash is
burned, causing air pollution. But the more healthy
way to get rid of solid wastes is to spread them
over the land and pack them down. After that a
thick layer of earth can be put down over the
garbage and trees and grass can be planted.

rubbish
The problem of removal and utilization

of the
rubbish was solved in Japan in a very interesting
way. Careful Japanese people gather food and
industrial waste separately. And they press it in
blocks. Those blocks wear packed up near the cost
in the ocean. So the coast was built up and a new
territory was formed. Now on this land there is a
new town. It is called a town of the future.

If you

don’t think about the future you will not to have it
John Golsworthy

Fortunately, it’s not too late to solve these problems. We can plant trees and create parks for endangered animals. We can recycle our wastes and persuade enterprises to stop polluting activities, because it is apparent that we are destroying our Earth and future.

schoolchildren and students”/N.V.Beregovaya, N.G.Brusova/Moscow/Dropha/2000.
“Ecology. School text-book”/ S.A.Bogolubov / Moscow/Znanie/

1999.
“Basis of ecology 10-11”/ N.M.Chernova / Moscow/Dropha/2001