Waec Model Questions Vol1 2019 Agricultural Science Question 40

Practice objective / multiple choice question 40 from the 2019 Waec Model Questions Vol1 Agricultural Science examination.

Waec Model Questions Vol1 2019 Agricultural Science Objective / Multiple Choice Hard Difficulty
Question 40 WAEC_MODEL_QUESTIONS_VOL1 • 2019 • AGRICULTURAL_SCIENCE • objective

A teak plantation covers 10 ha with a spacing of 4 m × 4 m. Each tree at age 5 years has a stem volume of 0.15 m³, and the volume increases by 0.05 m³ per year thereafter. Wood density is 0.65 t m⁻³, carbon constitutes 50 % of dry wood mass, and 1 t of carbon corresponds to 44/12 t of CO₂. Calculate the total amount of CO₂ (in tonnes) sequestered by the plantation at age 12 years.

Answer Options

Correct Answer A. 3 723 t CO₂
B. 2 950 t CO₂
C. 4 100 t CO₂
D. 3 250 t CO₂
Correct Answer
A
Correct Option:
3 723 t CO₂

About This Question

This is Waec Model Questions Vol1 2019 Agricultural Science Question 40. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Agricultural Science examination.

Difficulty level: Hard .

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