61 .The biological decomposition of organic substances in wastes under controlled conditions known as
A.  incineration
B.  sanitary landfill
C.  pyrolysis
D.  composting
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62 .Of all micro-organisms, the most adaptable & versatile are
A.  Fungi
B.  Algae
C.  Bacteria
D.  Viruses
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63 .BCG vaccine is used against
A.  Food poisoning
B.  Leprosy
C.  None of the above
D.  Tuberculosis
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64 .Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in
A.  Conduction
B.  Radiation
C.  Both conduction & convection
D.  Convection
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65 .Kwashiorkor and beriberi are
A.  none of these
B.  deficiency diseases
C.  infectious diseases
D.  communicable diseases
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66 .In a food chain, the solar energy utilized by plants is only
A.  0.1 per cent
B.  10 per cent
C.  0.01 per cent
D.  1 per cent
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67 .Mushroom cultivation is not useful in
A.  Preventing cancer
B.  Biological control of crop diseases
C.  Recycling of agricultural wastes
D.  Biogas production
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68 .'Slipper animalcule' is the common name for:
A.  Plasmodium
B.  Trypanosoma
C.  Monocystis
D.  Paramecium
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69 .Dormancy period of animals during winter season is called:
A.  Aestivation
B.  Hibernation
C.  Regeneration
D.  Mutation
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70 .White blood corpuscles in the human body have a diameter of approximately
A.  0.07 mm
B.  0.0007 mm \",0.007 mm",0.7 mm"
C.  0.007 mm
D. 
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71 .A man receives his X-chromosome from
A.  his mother only
B.  his father only
C.  either his mother or his father
D.  both his mother and father
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72 .Total number of muscles present in our body is:
A.  656
B.  565
C.  556
D.  665
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73 .Jaundice is a disease which affects
A.  Heart
B.  Gall bladder
C.  Liver
D.  Spleen
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74 .From which one of the following is quinine extracted -
A.  Cinchona
B.  Datura
C.  Sarpagandha
D.  Opium
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75 .Anglo-Nubian is a breed of:
A.  cattle
B.  goat
C.  poultry
D.  sheep
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