Jamb Agricultural Science Past Questions For Year 2020

Question 66

Maize is a very important crop because apart from serving as a staple, it

jamb 2020

  • A. is ploughed into the soil to increase fertility
  • B. can be processes into corn flakes
  • C. forms the base of most livestock feeds
  • D. is used for producing germ oil
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Question 67

Leguminous cover crops do not

jamb 2020

  • A. bind the soil particles together through their roots
  • B. increase the nitrogen content of soils
  • C. aid in improving the soil organic matter content
  • D. reduce the soil microbial population
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Question 68

Improvement of yam through breeding is difficult because

jamb 2020

  • A. it possesses no sexual reproductive system
  • B. naturally growing types have to be used
  • C. its rapid multiplication is very difficult
  • D. its genes do not segregate
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Question 69

Animal which chew the cud are

jamb 2020

  • A. amphibians
  • B. aves
  • C. ruminants
  • D. reptiles
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Question 70

Birds temporarily store their food in the

jamb 2020

  • A. crop
  • B. gizzard
  • C. proventriculus
  • D. duodenum
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