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Friday, 14 August 2026
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Biology Past Questions and Answers

Topic: Tropical rainforest

Jamb Biology Questions - Tropical rainforest

Question 1:
Leaching is
  • A Washing away of humus from the soil surface
  • B Reducing of soil aeration by pressure
  • C Soil erosion by means other than rainfall
  • D Loss of organic matter due to exposure to direct sunlight
  • E Washing out chalk and limestone from upper layers of by heavy rains
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Question 2:
A larger percentage of tropical soils tends to be acidic because they
  • A Contain large quantities of potash
  • B Contain large quantities of lime
  • C Lose a high proportion of their organic matter to running water
  • D Lose lime and potash from the top soil through rain action
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Question 3:
Which of the following is an adaptation of tropical rainforest species?
  • A Few stomata
  • B Thick bark
  • C Buttress roots
  • D Reduced leaves
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Question 4:
Plants of temperate origin can be grown in tropical areas in the vegetation zones of the
  • A Rain forest
  • B Guinea savanna
  • C Sudan savanna
  • D Montane forest
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Question 5:
A characteristic feature of tropical rainforest is that it
  • A Contains trees with narrow leaves
  • B Contains large number of plant species
  • C Contains fewer number of plant species
  • D Has total annual rainfall of less than 50cm
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