2. DEFINETION OF POLLUTION
WHEN HARMFUL SUBSTANCES
CONTAMINATE THE ENVIRONMENT IT IS
CALLED POLLUTION
POLLUTION REFERS TO VERY BAD
CONDITION OF ENVIRONMENT IN TERMS
OF QUALITY AND QUANTITY
4. WHAT IS ATMOSPHERE
ATMOSPHERE IS THE LIFE BLANKET OF
EARTH
IT IS THEREFORE ESSENTIAL THAT WE
KNOW ABOUT THE ATMOSPHERE AND
THE WAYS IN WHICH IT IS POLLUTED
5. CAUSES OF AIR POLLUTION
MAJOR SOURCES
OF AIR POLLUTION
INDUSTRIES
AUTOMOBILES
HIGH PROPORTION
OF UDESIRABLE
GASES SUCH AS
CARBON DIOXIDE
ETC
6. EFFECTS OF AIR POLLUTION
AIR POLLUTION
EFFECTS ??
HUMAN HEALTH
ANIMALS
PLANTS
THE ATMOSPHERE
AS A WHOLE
OZONE DEPLETION
ACID RAIN
7. OZONE DEPLETION
Ozone layer depletion, is simply the wearing out
(reduction) of the amount of ozone in the
stratosphere. Unlike pollution, which has many types
and causes, Ozone depletion has been pinned down
to one major human activity.
Industries that manufacture things like insulating
foams, solvents, soaps, cooling things like Air
Conditioners, Refrigerators and ‘Take-Away’
containers use something called chlorofluorocarbons
(CFCs). These substances are heavier than air, but
over time, (2-5years) they are carried high into the
stratosphere by wind action. Depletion begins when
CFC’s get into the stratosphere
8. ACID RAIN
Acid rain is rainfall that has been
acidified. Rain is acidified by
oxides of sulfur and nitrogen. Acid
rain usually has a pH of less than
5.6. Acid rain is formed when
pollutants called oxides of sulfur
and nitrogen, contained in power
plant smoke, factory smoke, and
car exhaust, react with the
moisture in the atmosphere. Dry
deposition, such as soot and ash,
sleet, hail, snow, smog and low
level ozone are forms that acid
rain can take, despite its name.
9. HOW TO AVOID AIR POLLUTION
YES WE CAN AVOID
POLLUTION AS
FOLLOWS
USE NATURAL GASES
LIKE LPG
DO NOT BURST
CRACKERS
USE OF PUBLIC
TRANSPORT
10. WHAT IS WATER POLLUTION
THE CONTAINATION OF WATER WITH
UDESIRABLE SUBSTANCES WHICH
MAKES IT UNFIT FOR USAGE IS TERMED
AS WATER POLLUTION
11. CAUSES OF WATER POLLUTION
ABOUT 40% OF DEATH WORLD WIDE
ARE CAUSED BY WATER POLLUTION
WATER POLLUTION IS CAUSED BY
INDUSTRIAL WASTES AND AFFLUENT
DISCHARGE INTO RIVERS
12. EFFECTS OF WATER POLLUTION
DISEASES LIKE CHOLERA
MALARIA
TYPHOID
AQUATIC LIFE GETS DESTROYED
13. HOW TO AVOID WATER POLLUTION
RIVERS SHOULD NOT BE USED FOR
WASHING CLOTHES OR BATHING
ANIMALS IN.
HARVESTING OF WATER TO MEET
WATER REQUIREMENTS
LIQUID INDUSTRIAL WASTE TO BE
TREATED PROPERLY
NO GARBAGE SHOULD BE DISPOSED IN
WATER BODIES
