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WAEC Biology 2018 Objective — Question 24

Question 24 of 50 from the West African Examinations Council (WAEC) Biology 2018 Objective paper, with the correct answer and a full explanation.

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The ascent of water in tall trees is mainly due to

  • A. adhesive forces
  • B. transpiration pullCorrect
  • C. root pressure
  • D. cohesive forces

Explanation

Transpiration pull (the pull created by water loss from leaves) is the main force driving the ascent of water in tall trees.

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