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Friday, 14 August 2026
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Biology Past Questions and Answers

Topic: Inorganic

Jamb Biology Questions - Inorganic

Question 1:
if three 30 cm lengths of glass tubes are tightly packed with clay, sand and loamy soils respectively and then stood in a beaker of water for one week, the level of water will be
  • A Lowest in the tube with clay
  • B The same in all tubes
  • C Lowest in the tube with loamy soil
  • D Highest in the tube with sandy soil
  • E Lowest in the tube with sandy soil
View Answer & Explanation
Question 2:
The origin of mineral particles in the soil is
  • A Humus
  • B Water
  • C Micro-organisms
  • D Weathered rock
  • E Organic matter
View Answer & Explanation
Question 3:
The mineral nutrient that is most bound to the soil is
  • A Phosphorus
  • B Calcium
  • C Iron
  • D Potassium
View Answer & Explanation
Question 4:
The mineral nutrient that easily gets leached out of the soil is
  • A Phosphorus
  • B Calcium
  • C Magnesium
  • D Nitrate
View Answer & Explanation
Question 5:
Atmospheric nitrogen is converted to soil nitrogen for plant use by
  • A Nitrification and combustion
  • B Putrefaction and lightning
  • C Lightning and nitrification
  • D Combustion and putrefaction
View Answer & Explanation