Question

the instrument used for measuring temperature? thermometer celsius kelvin fahrenheit

Explanation:

To determine the instrument for measuring temperature, we analyze each option:

• Thermometer: A device (instrument) designed to measure temperature.
• Celsius: A unit of temperature measurement, not an instrument.
• Kelvin: A unit of temperature measurement (absolute scale), not an instrument.
• Fahrenheit: A unit of temperature measurement, not an instrument.

So the correct option is the one labeled "Thermometer".

Answer:

A. Thermometer (assuming the first option with the selected circle is labeled as A, but based on the content, the correct choice is Thermometer among the given options where Thermometer is the instrument for measuring temperature, while Celsius, Kelvin, Fahrenheit are temperature scales/units.)