86. Which of the following diseases are transmitted from one person to another?
    1. AIDS
    2. Cirrhosis
    3. Hepatitis B
    4. Syphilis
    Select the correct answer using code given below

1. 1. 1, 2, 3 and 4

   
   
   

   2. 1, 3 and 4 only

   
   
   

   3. 1 and 2 only

   
   
   

   4. 2, 3 and 4 only

   
   
   

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   N/A

   Correct Option: B

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87. Living organisms require at least 27 elements of which, 15 are metals, Among these, those required in major quantities, include

1. 1. Potassium, maganese, molybdenum and calcium

   
   
   

   2. Potassium, molybdenum, copper and calcium

   
   
   

   3. Potassium, sodium, magnesium and calcium

   
   
   

   4. Sodium, magnesium, copper and magnanees

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

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88. Which of the following diseases of milching animals are infectious
    1. Foot and mouth disease
    2. Anthrax
    3. Black quarter
    4. Cowpox
    Select the correct answer using the code given below

1. 1. 1, 2 and 3

   
   
   

   2. 2, 3 and 4

   
   
   

   3. 1 and 4

   
   
   

   4. 1,2,3 and 4

   
   
   

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   N/A

   Correct Option: C

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89. By weaving thread of physics, chemistry and biology into a rich tapestry this remarkable scientist provided a unifying molecular view of the world. He taught the wonderful properties of vitamin C, first as a cure of common cold and later as preventing agent against cancer. One of science's major figures of all time referred to above is

1. 1. GN Lewis

   
   
   

   2. Linus Carl Pauling

   
   
   

   3. Fritz Landon

   
   
   

   4. Walter Heitle

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

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90. What may cause a person's ear to get hurt during take-off of landing on an aircraft?

1. 1. Stretching of the tympanic

   
   
   

   2. Damage to the middle ear ossicles

   
   
   

   3. Increased impulses to the cochlea

   
   
   

   4. Vibration in the bony labyrinths of the inner ear

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: A

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