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Agricultural Science 1990 WAEC Past Questions

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11
Which of the following will not contribute to soil formation in Nigeria?
  • A. carbonation
  • B. oxidation
  • C. temperature
  • D. hydrolysis
  • E. glaciation
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12
The type of soil formed is affected by the following factors except
  • A. farming systems
  • B. climate
  • C. vegetation
  • D. topography
  • E. parent material
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13
Which of the following is the function of nitrosomonas in the nitrogen cycle?
  • A. ammonification
  • B. volatilization
  • C. nitrification
  • D. dentrification
  • E. nitrogen fixation
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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WAEC offline past questions - with all answers and explanations in one app - Download for free
14
Which of the following farm practices does not have a very harmful effect on the soil?
  • A. crop rotation
  • B. land clearing
  • C. overgrazing
  • D. flooding
  • E. bush burning
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15
Soil can be drained by the use of the following except
  • A. sprinklers
  • B. channels
  • C. gutters
  • D. ditches
  • E. porous pipes
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Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709