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Biology Past Questions and Answers

Jamb 1988 Biology Questions

Question 46:
The mineral nutrient that is most bound to the soil is
  • A Phosphorus
  • B Calcium
  • C Iron
  • D Potassium
View Answer & Explanation
Question 47:
The mineral nutrient that easily gets leached out of the soil is
  • A Phosphorus
  • B Calcium
  • C Magnesium
  • D Nitrate
View Answer & Explanation
Question 48:
Most commercial fertilizers are rich in salts of
  • A Sodium, iron and calcium
  • B Nitrogen, phosphorus and potassium
  • C Iron, copper and nitrogen
  • D Calcium, sodium and phosphorus
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Question 49:
Dead plants and animals are decomposed by bacteria and fungi into
  • A Nitrate
  • B Nitrites
  • C Amino acids
  • D Ammonium
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Question 50:
At what stage in this cycle can man be infected?
  • A 2
  • B 4
  • C 5
  • D 6
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