Water 1
-
Upload
pepi-nikova -
Category
Technology
-
view
255 -
download
0
Transcript of Water 1
Water is a precious element which covers about the 3/4 of
the earth’s surface.
Without water there wouldn’t be any form of life on the
earth.
WHAT IS WATER?
WATER ORIGINWATER ORIGIN
The water on the earth
probably originated after the
very numerous and intense
volcanic eruptions which took
place on the earth’s surface
for about 3 milliard years.
Water Water isis a compound of a compound of
hydrogen and oxigen and hydrogen and oxigen and
it has chemical formula it has chemical formula
HH22OO
WATER COMPOSITIONWATER COMPOSITION
WATER’S CLASSIFICATIONWATER’S CLASSIFICATIONThere are several kinds of waters There are several kinds of waters on the earth:on the earth:
Superficial Drinkable
Mineral
Thermal
WATER CYCLEWATER CYCLE
It consists of a continous
movement of water from
atmosphere to soil and from
ground to atmosphere.
They are natural flous of
water which gush out from
the ground in a single point
and are fed by a vein
flowing in non visible
underground ways.
THE SPRINGSTHE SPRINGS
They are watercourses They are watercourses
with perennial flow fed with perennial flow fed
by springs, atmospheric by springs, atmospheric
precipitations and by precipitations and by
the waters from meltin the waters from meltin
of snow and glaciers.of snow and glaciers.
THE RIVERSTHE RIVERS
THE GLACIER IS USUALLY THE GLACIER IS USUALLY
COMPARED TO A RIVER FLOWING COMPARED TO A RIVER FLOWING
BY GRAVITY FORCE FROM THE BY GRAVITY FORCE FROM THE
HIGHEST MOUNTAIN HIGHEST MOUNTAIN
DOWNWARDS AD PROVIDING DOWNWARDS AD PROVIDING
WATER TO VALLEYS AND WATER TO VALLEYS AND
FEEDING RIVERS.FEEDING RIVERS.
THE GLACIERSTHE GLACIERS
WATER CONSUMPTIONWATER CONSUMPTION
Beginning from the 60s the
water consumption
remarkably increased, so
much to become a real
problem for the future
generations.
With the extraordinary increase of the With the extraordinary increase of the
industrial production and of the industrial production and of the
consuptions, it was determinated a consuptions, it was determinated a
deep alteration of the surround deep alteration of the surround
environment. Among the most evident environment. Among the most evident
injuries caused by man to habitat, injuries caused by man to habitat,
there is the water pollution.there is the water pollution.
WATER POLLUTIONWATER POLLUTION
KINDS OF WATER POLLUTIONKINDS OF WATER POLLUTION
THERE ARE SEVERAL KINDS OF THERE ARE SEVERAL KINDS OF
WATER POLLUTION:WATER POLLUTION:
• Natural
• Domestic
• Agricultural
• Industrial
PETROLEUM
PARASITICIDES
PESTICIDES
FERTILIZERS WASTE
NATURAL WATER POLLUTION
DEATH OF FISH AND SEA-BIRDS
LOSSES IN TOURISM AND ECONOMY HEALTH DAMAGES
WATER BEDS POLLUTION EUTROPHICATION OF LAKES AND SEAS
INDUSTRIAL AND
HOUSEHOLD WASTE
During floods, river waters carry During floods, river waters carry
several materials, among which several materials, among which
there is also organic material that there is also organic material that
undergoes processes of undergoes processes of
putrefaction and fermentation.putrefaction and fermentation.
NATURAL WATER POLLUTIONNATURAL WATER POLLUTION
HOUSEHOLD WATER POLLUTIONHOUSEHOLD WATER POLLUTION
Population increase and a greater welfare
bring about increasing in:• consumptions and consumptions and sewer-discharge,sewer-discharge,
• foams due to nonfoams due to non biodegradable detergents, biodegradable detergents,
• plastic materials consumptionsplastic materials consumptions.
AGRICULTURAL AGRICULTURAL WATER POLLUTION WATER POLLUTION
It is caused by the It is caused by the products used for lands products used for lands and plants, whose and plants, whose refuses are carried by refuses are carried by backwaters and dived backwaters and dived into rivers and canals.into rivers and canals.
INDUSTRIAL WATER POLLUTIONINDUSTRIAL WATER POLLUTION
Most of the factories produce Most of the factories produce
organic waste which give rise to organic waste which give rise to
fungi and bacteria. One million fungi and bacteria. One million
tons of waste are discharged tons of waste are discharged
into our seas. 70% come from into our seas. 70% come from
industrial waste.industrial waste.
PERSONAL REMARKS• HOW CAN I PROTECT WATERHOW CAN I PROTECT WATER??
• I SHOULDN’T LEAVE USELESSLY THE TAP RUNNING;
• I SHOULDN’T WASTE WATER IN GAMES OR TRICKS;;
• I SHOULDN’T THROW RUBBISH, PAPER, PLASTIC
BAGS IN THE WATER IN ORDER TO AVOID TO
POLLUTE IT, BECAUSE POLLUTED WATER CANNOT
BE USED;;
• I SHOULD INFORM THE OTHERS AND GET
INFORMATION ABOUT ALL THE POSSIBLE WAYS TO
PROTECT WATER..