I have the following question:
Which of the following would not be used to measure changes in atmospheric gases?
ii) Mass Spectrometer
iii) Digital Thermometer
iv) Fractional Distillation
I assumed it would be fractional distillation since you cannot really measure anything with it? You only separate the fractions of different materials such as crude oil.
However the answer was Digital Thermometer. I guess I can understand how this object would be useless at measuring atmospheric changes relating to gases however how would you detect atmospheric gases changes using fractional distillation?