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Biology 1990 WAEC Past Questions

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46
Which of the following processes is not involved in the carbon cycle?
  • A. Burning
  • B. Decay
  • C. Transpiration
  • D. Respiration
  • E. Photosynthesis
View Answer & Discuss (3) WAEC 1990
47
Which of the following processes are involved in a water cycle?
  • A. Evaporation, condensation and precipitation
  • B. Evaporation, percolation and transpiration
  • C. Evaporation and precipitation
  • D. Evaporation and transpiration
  • E. Precipitation and condensation.
View Answer & Discuss WAEC 1990
48
Water in the human body is derived from the following sources except through
  • A. drinking water
  • B. food substances
  • C. cytoplasm of worn-out cells
  • D. respiratory activity
  • E. absorption by the skin
View Answer & Discuss (2) WAEC 1990
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49
The conservation of natural resources can be achieved by the following except
  • A. creation of national parks
  • B. formation of conservation societies and agencies
  • C. establishment of game reserves
  • D. deregulated harvesting
  • E. making laws on conservation
View Answer & Discuss (1) WAEC 1990
50
Water rises most rapidly in
  • A. sandy soil
  • B. clayey soil
  • C. sandy-loam soil
  • D. loamy soil
  • E. humus soil
View Answer & Discuss (10) WAEC 1990
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