Which would not provide a useful measurement of temperature? the expansion of a liquid inside a closed tube the pressure of a gas inside a container of constant volume the electrical resistance of a conducting wire the change in the height of a liquid in a tube that is open on one end

Answer: fourth option) the change in the height of a liquid in a tube that is open on one end

Justification:

When the tube is open the liquid in it is subject to changes in atmosphere pressure, so it cannot not be reliable, because the depending on the weather conditoins and the altitude of the place, the measurement would differ.

The thermometers have to be closed so that the changes in the liquid expansion reflects only the change in temperature.

Note that the other two phenomena (change in pressure of a gas and change in resistances of metals) are very well related to changes in temperature and, so, devices based on them would result in precise temperature measurement devices.