Conservation of Plants and Animals Class 8 PPT

 Page 1


CHAPTER - 7 
 
CONSERVATION OF PLANTS AND 
ANIMALS 
Page 2


CHAPTER - 7 
 
CONSERVATION OF PLANTS AND 
ANIMALS 
1) Deforestation :- 
     The clearing of forests and using the land for other 
purposes is called deforestation. 
  The causes f o  deforestation are :- 
  i) Procuring land for cultivation. 
 ii) Building houses and factories. 
iii) Using wood as fuel or making furniture etc. 
    The natural causes of deforestation are forest fires and 
d o r ught. 
Page 3


CHAPTER - 7 
 
CONSERVATION OF PLANTS AND 
ANIMALS 
1) Deforestation :- 
     The clearing of forests and using the land for other 
purposes is called deforestation. 
  The causes f o  deforestation are :- 
  i) Procuring land for cultivation. 
 ii) Building houses and factories. 
iii) Using wood as fuel or making furniture etc. 
    The natural causes of deforestation are forest fires and 
d o r ught. 
2) Consequences of deforestation :- 
     The consequences of deforestation are :- 
   i) Increase in the temperature and pollution level on the    
      a E rth. 
  ii) Increase in the level of carbon dioxide in the  
      atmosphere leading to global warming. 
 iii) Lowering of ground water level. 
 iv) Disturbs the balance in nature. 
  v) Decrease in rainfall leading to d o r ught. 
 vi) Soil erosion and decrease in soil fertility leading to   
      desertification. 
vii) Decrease in the water holding capacity of soil leading to  
      floods.  
Page 4


CHAPTER - 7 
 
CONSERVATION OF PLANTS AND 
ANIMALS 
1) Deforestation :- 
     The clearing of forests and using the land for other 
purposes is called deforestation. 
  The causes f o  deforestation are :- 
  i) Procuring land for cultivation. 
 ii) Building houses and factories. 
iii) Using wood as fuel or making furniture etc. 
    The natural causes of deforestation are forest fires and 
d o r ught. 
2) Consequences of deforestation :- 
     The consequences of deforestation are :- 
   i) Increase in the temperature and pollution level on the    
      a E rth. 
  ii) Increase in the level of carbon dioxide in the  
      atmosphere leading to global warming. 
 iii) Lowering of ground water level. 
 iv) Disturbs the balance in nature. 
  v) Decrease in rainfall leading to d o r ught. 
 vi) Soil erosion and decrease in soil fertility leading to   
      desertification. 
vii) Decrease in the water holding capacity of soil leading to  
      floods.  
3) Conservation of F orest and W ildlife :- 
     Forest and W ildlife can be conserved by setting up areas like 
Biosphere reserves Wildlife sanctuaries, National parks, etc. 
  i) Biosphere reserves :- are large areas of protected land for 
conservation of biodiversity and the traditional life of the tribals living 
there. 
 ii) National parks :- are areas reserved for wildlife where they can 
freely use the habitats and natural resources. 
iii) Wildlife sanctuaries :- are areas where animals are protected 
from any disturbance to them or their habitat.  
Page 5


CHAPTER - 7 
 
CONSERVATION OF PLANTS AND 
ANIMALS 
1) Deforestation :- 
     The clearing of forests and using the land for other 
purposes is called deforestation. 
  The causes f o  deforestation are :- 
  i) Procuring land for cultivation. 
 ii) Building houses and factories. 
iii) Using wood as fuel or making furniture etc. 
    The natural causes of deforestation are forest fires and 
d o r ught. 
2) Consequences of deforestation :- 
     The consequences of deforestation are :- 
   i) Increase in the temperature and pollution level on the    
      a E rth. 
  ii) Increase in the level of carbon dioxide in the  
      atmosphere leading to global warming. 
 iii) Lowering of ground water level. 
 iv) Disturbs the balance in nature. 
  v) Decrease in rainfall leading to d o r ught. 
 vi) Soil erosion and decrease in soil fertility leading to   
      desertification. 
vii) Decrease in the water holding capacity of soil leading to  
      floods.  
3) Conservation of F orest and W ildlife :- 
     Forest and W ildlife can be conserved by setting up areas like 
Biosphere reserves Wildlife sanctuaries, National parks, etc. 
  i) Biosphere reserves :- are large areas of protected land for 
conservation of biodiversity and the traditional life of the tribals living 
there. 
 ii) National parks :- are areas reserved for wildlife where they can 
freely use the habitats and natural resources. 
iii) Wildlife sanctuaries :- are areas where animals are protected 
from any disturbance to them or their habitat.  
4) Biosphere Reserve :- 
 i) Biosphere reserves :- are large areas of protected land for 
conservation of biodiversity and the traditional life of the tribals living 
there.  
 ii) Biodiversity :- is the variety of plants, animals and 
microorganisms found in the area. 
     The Pachmarhi Biosphere Reserve consists of a National park called 
Satpura and two wildlife sanctuaries called Bori and Pachmarhi.