66. Consider the following statements
    1. The region comprising Morocco, Tunisia and the northern part of Algeria.
    2. The original population of the region belong to the Semitic group known as the Barbers.
    3. The irrigated crops which account for a large part of the value of all agricultural experts.
    Of these statements

1. 1. 1, 2 and 3 are correct

   
   
   

   2. 1 and 2 are correct

   
   
   

   3. 2 and 3 are correct

   
   
   

   4. 1 and 3 are correct

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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67. Assertion (A) : The Darwinian theory of natural selection sometimes referred to as 'the survival of the fittest' explains the origin of many species as a normal process of descent from parent forms.
    Reason (R) :The contemporary distribution pattern of many organisms is often the result of natural migration or dispersal from original center(s) of development.
    Code

1. 1. Both (A) and (R) are true and (R) is the correct explanation of (A)
      

   
   
   

   2. Both (A) and (R) are true but (R) is not the correct explanation of (A)
      

   
   
   

   3. (A) is true but (R) is false
      

   
   
   

   4. (A) is false but (R) is true
      

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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68. Match List - I (Factory of population Problem) with List - II (Corresponding Examples) and select the correct answer using the codes given below the lists:
    

    	List - I		List - II
    F.	Ban on migration	1.	Brazil
    G.	Extraordinary growth	2.	England
    H.	Indequate use of natural Resources	3.	South Africa
    J.	Unequal distribution	4.	Tropical lands

    Code :

    	F	G	H	J
    A.	1	4	2	3
    B.	3	4	2	1
    C.	1	4	2	3
    D.	3	4	2	1

1. 1. A.

   
   
   

   2. B.

   
   
   

   3. C.

   
   
   

   4. D.

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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69. Population explosion is associated with

1. 1. High birth rate and low death rate

   
   
   

   2. High birth rate and high death rate

   
   
   

   3. Low birth rate and high death rate

   
   
   

   4. Low birth rate and low death rate

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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70. Consider the following statements
    1. The present Infant Mortality Rate in India is about 80 per 1000 live births.
    2. The Tenth Plan envisages a reduction in Infant Mortality, Rate to 45 per 1000 lives births.
    3. The Tenth Plan envisages a reducation in decadal growth rate of the population between 2001-2011 to 10 per cent.
    Which of the statements given above is / are correct ?

1. 1. 1 and 2

   
   
   

   2. 2 only

   
   
   

   3. 1 and 3

   
   
   

   4. 1, 2 and 3

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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