The difference between upper and lower fixed points on all temperature scales is 100 degrees.
Lower fixed point- It is the temperature of melting ice
Upper fixed point-It is the temperature of steam.
Celsius scale-The unit of measurement on the celsius scale is degree Celsius, written as °C.
Fahrenheit scale-The unit of measurement on this scale is degree Fahrenheit, written as °F.
Hence, The difference between upper and lower fixed points on all temperature scales is different.
So, the given statement is False