3. A resource is anything which can be used for the benefit of
mankind.
Pencil, eraser, toothbrush, notebook, bus, chair, blackboard,
trees, sun, computer, train, aeroplane, water,โฆโฆ
The list of resources goes on and on.
In fact we ourselves are resources.
4. Nature + resources = Natural Resources
Natural resources include total natural
environment, that is the entire surface of
the earth .
6. The Environment is everything which surrounds an organism and influences its
life in many ways. It includes physical and biological components. The
physical components of the environment are soil, water, air, light and
temperature. These are termed as biotic components. The plants and animals
are collectively referred to as biotic components. All these components of
the environment work together, interact and modify the effect of one
another.
The basic needs of life are fulfilled by materials present in the nature. They are
air, water, soil, minerals, coal, petroleum, animals and plants. These are referred
to as natural resources. Everyday, people manufacture various natural
resources to satisfy their needs. Destruction of forests to cultivate agricultural
crops reduced the forest area hence, upsetting the ecological balance.
Growing population, agriculture, industrialization and urbanization have put
great pressure on mankind to overuse the natural resources.
7.
8.
9.
10. All the things we
use and
consume are
obtained from
natural
resources. Due to
increase in
population,
industrialization
and urbanization
the demand for
natural resources
is increasing and
their availability
is limited . So
there is a need
for proper
management of
natural
resources. The
proper
management of
natural resources
consists of :-
I) Judicious use
of natural
resources and
avoiding
wastage of
natural
resources.
ii) Long term
planning for the
use of natural
resources so that
it last not only for
the present but
also for future
generations.
iii) The
exploitation of
natural resources
should not be for
the benefit of a
few people but
should be
distributed
equally for all.
iv) While
extracting and
using natural
resources we
should also plan
for the safe
disposal of
wastes so that no
damage is
caused to the
environment.
13. โข Forests are natural habitats of plants and animals.
โข Forests help to preserve biodiversity
โข Forests provide wood, fuel, medicines, fodder, etc.
โข Forests help to maintain the stability of oxygen and
carbon dioxide.
โข Forests help to prevent soil erosion and control
floods.
14. 4
Nature and
wild life
organizations
who want to
conserve and
preserve
forests.
3
The Forest
Departmen
t of the
Governme
nt which
owns the
forests and
controls
the
resources
from the
forests.
2
Industrialis
ts who use
the raw
materials
from
forests for
manufactur
ing certain
goods.
1
People
living in or
around
forests
who
depend on
forests for
their
livelihood.
15.
16. Wildlife helps
to preserve
biodiversity.
Wild life helps
to maintain
food chains
and food web.
We get useful
products from
wild life.
We get food,
bones, honey,
leather etc.
17. Preserving the
natural habitats of
animals.
Protecting
endangered species
of animals.
Setting up of wildlife
sanctuaries, national
parks, biosphere
reserves etc.
Banning poaching of
animals.
18.
19. COAL AND PETROLEUM
COAL AND PETROLEUM ARE NATURAL RESOURCES.
THEY ARE ALSO CALLED FOSSIL FUELS.
THESE ARE FORMED DUE TO DEGRADATION OF PLANTS AND
ANIMALS BUIRED UNDER THE EARTH MILLINS OF YEARS AGO.
20. FOSSIL FUELS
WHEN THESE FOSSIL FUELS ARE BURNT THE PRODUCTS OF
COMBUSTION ARE
CO2 , H2O , SO2 , NO2 .
IF COMBUSTION TAKES PLACE IN AN INSUFFICIENT SUPPLY
OF AIR THEN CARBON MONOXIDE IS PRODUCED.
21. THE ENVIROMENT IS BEING POLLUTED
BY THE FOLLOWING-
โข 1. SULPHER DIOXIDES CAUSE
BRONCHITIS.
โข 2.NITROGEN OXIDES CAUSE ACID
RAIN.
โข 3.CARBON MONOXIDE CAUSES
SUFFOCATION AND IT IS A GREEN
HOUSE GAS.
23. Coal Power
๏ถ Cheap
๏ถCheaper per unit energy than oil or natural gas
๏ถWill continue to be an important global resource
๏ถ Abundance
๏ถCoal is the worldโs most abundant fossil fuel
๏ถSufficient reserves for the next 250 years.
24. Coal Power
๏ถElectricity
๏ถSupplying approximately 50% of electricity to the INDIA
๏ถEconomy
๏ถCoal-mining stimulates over one million jobs
.
๏ถCoal contributes over $80 billion annually to the economy
25.
26. Effects on the environment and Human health
๏ถ SO2
o Sulfur dioxide combined with nitrogen
oxide react with water and oxygen in the
atmosphere to form acidic compounds,
which can mix with natural precipitation
and fall to the earth as acid rain.
o Sulfur dioxide can also combine with
nitrogen oxide and other particles to form
particulate matter.
o trigger heart attacks and strokes
o lead to cardiac arrhythmia (irregular
heartbeat)
o respiratory irritation, and worsen
asthma.
o premature death (Both short-term
and long-term exposure)
27. Effects on the environment and Human health
๏ถ Mercury
๏ถ One of the most dangerous pollutants released into the air
through the exhaust system when coal is burned.
28. WATER FOR ALL
THE VARIOUS SOURCES OF WATER WHICH ARE
AVAILABLE TO US ARE โ
RAINS ,RIVER ,LAKES ,PONDS etc.
RAIN IS VERY IMPORTANT SOURCE OF WATER.
RAIN WATER IS STORED IN WATER BODIES .
RIVERS ARE IMPORTANT SOURCE OF WATER .
THE MANAGEMENT OF RIVER WATER IS DONE BY
CONSTRUCTION OF DAMS
30. DAMS
โข THE LARGE RESERVIOR OF DAM STORES A
HUGE AMOUNT OF WATER . WATER FROM
DAMS ARE USED FOR IRRIGATION IN
FIELDS. CONSTRUCTION OF DAMS ENSURE
CONTINUES WATER SUPPLY TO TOWN AND
CITIES. THE WATER SUPPLY FROM DAMS IS
USED TO GENARATE ELECTRICITY.
31. THE PUBLIC OPPOSITION TO CONSTRUCTION OF LARGE DAM ON RIVER IS
DUE TO FOLLOWING PROBLEMS
โข 1. SOCIAL PROBLEMS
DUE TO CONSTRUCTION OF DAMS ,
A LAREGE NUMBER OF VILLAGERS
ARE SUBMERGED IN THE WATER AND MANY PEOPLE
ARE RENDERED HOMELESS . THIS CREATES SOCIAL
PROBLEMS .
32. ENVIROMENTAL PROBLEMS
โข THE CONSTRUCTION OF DAMS CAUSE DEFORESTRATION AND
LOSS OF BIODIVERSITY.
โข IT DISTURBS THE ECOLOGICAL BALANCE.
33. 3. ECONOMIC PROBLEMS
โข CONSTRUCTION OF DAMS INVOLVES THE SPENDING OF HUGE
AMOUNT OF PUBLIC MONEY WITH OUT GENERATIONS OF
PROPOTIONAL BENEFITS.
34. WATER HARVESTING
THE MAIN PURPOSE OF WATER HARVESTING
IS NOT TO HOLD RAIN WATER ON THE
SURFACE BUT TO MAKE RAIN WATER
PERCOLATE UNDER THE GROUND SO AS TO
RECHARGE GROUND WATER .
35. THE VARIOUS ADVANTAGE OF
WATER STORED IN GROUND ARE-
1. IT DOES NOT EVAPORATE.
2. IT IS PROTECTED FROM CONTAMINATION.
3. IT DOES NOT PROMOTE BREEDING OF
MOSQUITOES.
4. IT PROVIDE MOISTURE TO CROP FIELDS.
36. SOME ANCIENT WATER HARVESTING
STRUCTURES
REGION STRUCTURE
1. RAJASTHAN KHADINS , NADINS
2. MAHARASHTRA TALS , BANDARAS
3. MP AND UP BUNDHINS
4. BIHAR AHARS , PYNES
5. JAMMU PONDS
6. TAMIL NADU ERIS
7. KERALA SURANGAMS
8. KARNATAKA KATTAS
