Question 9
Ecosystem and Ecological FactorsThe diagram below is an illustration of an ecological instrument used in a habitat. The ecological instrument is a
- A.wind vane.
- B.Six's thermometer.
- C.Secchi disc.
- D.hygrometer.
Show the answer and explanation
Answer: C (Secchi disc.)
Explanation
The black-and-white disc lowered on a graduated rope or rod is a Secchi disc.