96. What is the primary reason for targeting 'biodiversity hotspots' for conservation ?

1. 1. To protect all areas of threatened species would not allow for new species to develop

   
   
   

   2. The number of species threatened far exceeds our capacity to protect them and we can therefore on;y concentrate on areas of highest species diversity

   
   
   

   3. They are areas where people do not live and conservation would therefore not be effecting the economic development of the area

   
   
   

   4. The are the only areas where species are seriously threatened in the world

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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97. The Secretariat of the conventions on Biological Diversity, coordinating the International year of
    Biodiversity compaign was based in

1. 1. Italy

   
   
   

   2. London

   
   
   

   3. Toronto

   
   
   

   4. Montreal

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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98. Consider the following Statements :
    1. An increase in tropospheric oznoe concentration has a warming effect on earth
    2. A decrease in stratospheric ozone concentration has a cooling effect on earth
    Which of the above statements is/are true ?

1. 1. 1 only

   
   
   

   2. 2 only

   
   
   

   3. Both 1 and 2

   
   
   

   4. Neither 1 nor 2

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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99. Consider the following list of factors :
    1. Dispersal
    2. Rainfall
    3. Mineral deposits
    4. Competition
    5. Temperature
    Which of the factors listed above are most significant in determining the fact that belts of vegetation at successively higher latitudes ?

1. 1. 1 and 3

   
   
   

   2. 3 and 5

   
   
   

   3. 2 and 4

   
   
   

   4. 2 and 5

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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100. The single greatest current threat to biodiversity is

1. 1. Global warming

   
   
   

   2. Habitat destruction

   
   
   

   3. introduced species

   
   
   

   4. overhunting

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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