WAEC Biology 2018 Objective — Question 31
Question 31 of 50 from the West African Examinations Council (WAEC) Biology 2018 Objective paper, with the correct answer and a full explanation.
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Which of the following instruments is used to determine the turbidity of water?
- A. hygrometer
- B. hydrometer
- C. secchi discCorrect
- D. rain gauge
Explanation
A secchi disc is used to measure the turbidity (clarity) of a body of water.
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