Waec Model Questions Vol1 2023 Biology Question 22
Practice objective / multiple choice question 22 from the 2023 Waec Model Questions Vol1 Biology examination.
A mixed forest contains two tree species, A and B. Species A grows at 2 % per year and species B at 3 % per year. Initially, species A accounts for 60 % of the total basal area and species B for 40 %. After 10 years a pest reduces the growth rate of species B to 1 % per year for the remaining period. What percentage of the total basal area will be occupied by species A after 15 years?
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This is Waec Model Questions Vol1 2023 Biology Question 22. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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