WAEC Biology 2025 Objective — Question 29
Question 29 of 50 from the West African Examinations Council (WAEC) Biology 2025 Objective paper, with the correct answer and a full explanation.
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The ecological instrument illustrated below is a
- A. Wind vane
- B. Six's thermometer
- C. Secchi discCorrect
- D. Hygrometer
Explanation
The instrument shown is a Secchi disc, a circular plate lowered into a body of water.
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