Waec Model Questions Vol1 2021 Biology Question 12
Practice objective / multiple choice question 12 from the 2021 Waec Model Questions Vol1 Biology examination.
A terrestrial ecosystem receives a primary productivity of 2000 kcal m⁻² yr⁻¹. Energy transfer efficiencies are 10 % from producers to primary consumers, 8 % from primary to secondary consumers, and 5 % from secondary to tertiary consumers. A pollutant reduces the secondary‑to‑tertiary efficiency by 40 % of its original value. What is the net energy available to tertiary consumers per square metre per year after the reduction?
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This is Waec Model Questions Vol1 2021 Biology Question 12. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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