Question

Which thermometer is used in the polar region? Justify your answer.

Answer 1

Answer:

Ethanol-filled thermometers are used.

Explanation:

Ethanol-filled thermometers are used in preference to mercury for meteorological measurements of minimum temperatures and can be used down to −70 °C (-94 °F). The physical limitation of the ability of a thermometer to measure low temperature is the freezing point of the liquid used.

Answer 2

Answer:

Alcohol thermometers.

Concept:

The polar regions of Earth, also known as the cold zones or polar zones, are the areas of the globe that are within the polar circles and encircle the world's geographical poles (the North and South Poles).

Explanation:

Because mercury solidifies at 39 degrees Celsius, a mercury thermometer cannot be used to measure extremely low temperatures. Alcohol is used to measure extremely low temperatures since it solidifies at a considerably lower temperature, namely 114°C. Because the temperature in the Arctic and Antarctic can drop below 80 degrees Celsius, an alcohol thermometer would be used instead of a mercury thermometer in these areas.

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