1.Which of the following vitamins is synthesized in the body by intestinal bacteria?
 A. Vitamin B1
 B. Vitamin B4
 C. Vitamin D
 D. Vitamin K
 
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2.Conduction of current in an aqueous solution of sodium chloride is by:
 A. Chloride ions only
 B. Electrons only
 C. Sodium and chloride ions
 D. Sodium ions only
 
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3.Which of the following is the science dealing with tumor?
 A. Chronology
 B. Concology
 C. Oncology
 D. Serology
 
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4.Which crop has the highest photosynthesis activity?
 A. Cotton
 B. Rice
 C. Sugarcane
 D. Wheat
 
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5.The longest bone in the human body is:
 A. Back bone
 B. Gullet
 C. Stirrup
 D. Thigh bone
 
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6.__________ was the first scientist to use an instrument for biological studies in 1665.
 A. Charles Darwin
 B. Robert Hooke
 C. Schleiden
 D. Schwann
 
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7.The percentage content of carbon is found to be maximum in:
 A. Anthracite
 B. Bituminous
 C. Lignite
 D. Peat
 
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8.Which of the following metals can deposit copper from copper sulphate solution?
 A. Gold
 B. Iron
 C. Mercury
 D. Platinum
 
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