Question:
Which device is used to measure dissolved oxygen in pond water?
Which device is used to measure dissolved oxygen in pond water?
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DO meter → direct DO reading → vital for pond management.
Updated On: Jul 2, 2026
- Hydrometer
- Secchi disc
- DO meter
- Thermometer
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The Correct Option is C
Approach Solution - 1
Step 1: Dissolved oxygen (DO) is crucial for fish survival.
Step 2: DO meter gives instant, accurate DO levels.
Step 3: Hydrometer checks salinity, Secchi disc for turbidity, thermometer for temperature.
Step 2: DO meter gives instant, accurate DO levels.
Step 3: Hydrometer checks salinity, Secchi disc for turbidity, thermometer for temperature.
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Approach Solution -2
One Tool, One Job: Each pond-water instrument measures exactly ONE parameter — match the parameter asked (dissolved oxygen) to its dedicated tool.
A DO meter is built specifically to measure dissolved oxygen instantly and accurately, which is critical since fish survival depends directly on it.
Hydrometer measures salinity/density, Secchi disc measures water turbidity/transparency, and thermometer measures temperature — all useful, but none of them reads oxygen.
A DO meter is built specifically to measure dissolved oxygen instantly and accurately, which is critical since fish survival depends directly on it.
Hydrometer measures salinity/density, Secchi disc measures water turbidity/transparency, and thermometer measures temperature — all useful, but none of them reads oxygen.
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