Search SchoolNGR

Friday, 14 August 2026
Register . Login

Biology Past Questions and Answers

Topic: Renewal and maintenance of soil fertility

Jamb Biology Questions - Renewal and maintenance of soil fertility

Question 1:
The following are methods of soil conservation EXCEPT
  • A Contour terracing
  • B Strip cropping
  • C Contour ploughing
  • D Mixed grazing
View Answer & Explanation
Question 2:
Farmers practise crop rotation because it
  • A Helps to prevent soil erosion
  • B Allows two crops to be planted at the same time
  • C Helps to conserve soil fertility
  • D Is an alternate to shifting cultivation
View Answer & Explanation
Question 3:
Fertilizers are lost from the soil through
  • A Sheet erosion and evaporation
  • B Leaching, underground seepages and run-off
  • C Sheet erosion, gully erosion and wind erosion
  • D Wind erosion and heavy rainfall
View Answer & Explanation
Question 4:
The part of the mammalian ear responsible for the maintenance of balance is the
  • A Cochlea
  • B Pinna
  • C Perilymph
  • D Vestibular system
View Answer & Explanation
Question 5:
The part of the mammalian ear responsible for the maintenance of balance is the
  • A Cochlea
  • B Pinna
  • C Perilymph
  • D Vestibular system
View Answer & Explanation