186. The best source of Vitamin C among the following :

1. 1. Lycopersicum esculentum

   
   
   

   2. Cirus medica

   
   
   

   3. Capsicum annum

   
   
   

   4. Phyllanthus emblica

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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187. Approximately what proportion of the global land surface is used for agriculture and grazing by the world's 6 billion people ?

1. 1. Three quarters

   
   
   

   2. One tenth

   
   
   

   3. One third

   
   
   

   4. One eightieth

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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188. How many million hectares of forest are destroyed each year around the world ?

1. 1. Approximately 10 million

   
   
   

   2. Approximately 13 million

   
   
   

   3. Approximately 15 million

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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189. What is not an advantage to the Aswan Dam ?

1. 1. Increased prevalence of schistosomiasis

   
   
   

   2. Increased hydroelectric power

   
   
   

   3. Increased area of agricultural land

   
   
   

   4. Increased number of crops per year

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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190. What is not an indirect service of the world's ecosystems ?

1. 1. Atmospheric gas regulation

   
   
   

   2. Nutrient cycling

   
   
   

   3. Waste treatment

   
   
   

   4. Water supply

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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