Agricultural Science Past Questions

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6
Granite is
  • A. a sedimentary rock
  • B. a wealtered rock
  • C. mentamorphic rock
  • D. an igneous rock
  • E. a plutonic rock
View Answer & Discuss (2) WAEC 1988
7
In which layer of the soil profile does most biological activity occur?
  • A. parent material
  • B. D-horizon
  • C. C-horizon
  • D. B-horizon
  • E. A-horizon
View Answer & Discuss (1) WAEC 1988
8
When leaves of crop plants show brownish coloration from the tips of the mid-ribs backward, they are showing deficiency symptom of
  • A. magnesium
  • B. zinc
  • C. nitrogen
  • D. copper
  • E. phosphorus
View Answer & Discuss WAEC 1988
9
which of the following farm practices can prevent excessive evaporation from soil surfaces?
  • A. liming
  • B. mulching
  • C. weeding
  • D. harrowing
  • E. ploughing
View Answer & Discuss (4) WAEC 1988
10
Which of the following is not associated with surface irrigation?
  • A. natural flooding
  • B. check flooding
  • C. sprinkler irrigation
  • D. mole drains
  • E. tiles
View Answer & Discuss (2) WAEC 1988