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WAEC Biology 2025 Papers
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Question : 30
Total: 50
The diagram above is an illustration of an ecological instrument used in a habitat. Study it and answer question below.
The instrument is used to measure a factor
in the atmosphere
in water
on land
on grass
Validate
Solution:
The secchi disc is usually lowered into the water until it is no longer visible, while trying to measure water transparency or turbidity in oceans, lakes, and ponds.
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