Which of the following roofs provide better protection against heat?

1. 1. Asbestos sheets
   2. Cement slab
   3. Reinforced concrete
   4. None of the above

Hereditary disorders are the result of _____.

1. 1. Lack of Vitamin E
   2. Defective RNA nucleus
   3. Defective DNA nucleus
   4. None of the above

Mahalanobis model laid great emphasis on _____.

1. 1. Agriculture
   2. Energy
   3. Science and Technology
   4. Development of heavy industries

In animals the principal role of Vitamin E is _____.

1. 1. Reproduction
   2. Respiration
   3. Digestion
   4. Transpiration

Which of the following is entirely a plant product?

1. 1. Agar-Agar
   2. Lac
   3. Resin
   4. Latex

Universal blood donor belongs to the blood group _____.

1. 1. A
   2. B
   3. AB
   4. O

What is the normal rate of heart beat in human beings?

1. 1. 30 times per minute
   2. 53 times per minute
   3. 72 times per minute
   4. 62 times per minute

Which of the following is used in fire extinguishers?

1. 1. Carbon sulphate
   2. Carbon dioxide
   3. Carbon monoxide
   4. None of the above

Bauxite is an ore of _____.

1. 1. Aluminium
   2. Copper
   3. Iron
   4. Manganese

First Satellite Sputnik-I was launched in October 1957. Indicate the date is _____.

1. 1. 1st October 1957
   2. 2nd October 1957
   3. 3rd October 1957
   4. 4th October 1957