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JAMB Biology 1995 Question 31

Question 31

Ecosystem and Ecological Factors

The depth of illumination in a water body can be measured with a

  1. A.photometer
  2. B.secchi disc
  3. C.hydrometer
  4. D.anemometer.
Show the answer and explanation

Answer: B (secchi disc)

Explanation

A Secchi disc is lowered into water until it disappears; the depth shows how far light gets through.