Answer:
Explanation:B ice melting is a phiyscal change and the mass of the substance remains the same
A thermocouple is a sensor used to measure temperature. Thermocouples are made with two wires of different metals, joined together at one end to form a junction. ... Naturally, a thermocouple outputs a millivolt signal, therefore, as the resistance changes, the change in voltage can be measured.
-nat geo
Because in difrent materials atoms are more compact or less compact.if they are less compact then it will be easear for them to move
