Question

Difficulty: EasyEcological Factors and Their Measurement

Which of the following ecological instruments is used by biologists to measure relative humidity in a terrestrial habitat?

  1. A
    Anemometer
  2. HygrometerAnswer
  3. C
    Hydrometer
  4. D
    Barometer

Answer

The hygrometer is the instrument used to measure relative humidity in an ecosystem.
The hygrometer is designed specifically to measure relative humidity by detecting moisture content in atmospheric air.

Step-by-Step Solution

1
Identify the abiotic factor described in the stem.
The target abiotic factor is relative humidity (the percentage of water vapour present in atmospheric air).
Choosing the correct measuring instrument requires matching it with the specific physical variable being quantified.
2
Match the factor with its standard measuring device.
Relative humidity is measured using a hygrometer (or wet-and-dry bulb psychrometer).
Hygrometers detect changes in humidity levels in ambient air.

Key Concept

Measurement of Abiotic Ecological Factors
Estimated Time:45s
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