Waec Model Questions Vol1 2018 Agricultural Science Question 21
Practice objective / multiple choice question 21 from the 2018 Waec Model Questions Vol1 Agricultural Science examination.
In a forest stand the mean diameter at breast height (DBH) of a tree after t years is given by D = 30(1 - e^{-0.03 t}) cm. Tree height (in metres) can be approximated by H = 0.8 D. The volume per tree (in m³) is estimated by V = 0.00004 D² H. At what age (in whole years) will the average volume per tree reach 0.5 m³? Round to the nearest year.
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This is Waec Model Questions Vol1 2018 Agricultural Science Question 21. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
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