Final answer:
The ranking of political parties from left to right uses an ordinal scale, as it allows for ordering but not for the quantification of exact differences.
Step-by-step explanation:
The scale that orders political parties from left to right (One nation, Nationals, LNP, Labour, Greens) based on their political spectrum position would be an ordinal scale. The ordinal scale allows for the ranking or ordering of items based on a specific criterion, in this case, the political spectrum from left to right. However, it doesn't allow for the quantification of the differences between the items; that is, while we can order the parties, we cannot measure the exact political differences between them. This is different from nominal scale, which cannot be ordered, interval scale which can measure differences but has no true zero point, and ratio scale which has a true zero and thus allows for the measurement of ratios.