An absolute comparison is a comparison free from imperfection, free from any restriction or condition
I will assume you meant to ask, "What is absolute zero?" Absolute zero is the lowest possible temperature, at -273 degrees Celsius, or 0 Kelvins.
Your question is meaningless, there is either an absolute logation (x/y point) or an approximate location(near the house on the corner), there can not be an "approximate absolute" location.
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Add 273 to go from temperatures in degrees Celsius to Kelvin. Thus, -100 degrees Celsius is (-100+273=) 173 K.
A comparison that is not realistic.
you get 2 sets of numbers in a ratio comparison and you only get one in a difference comparison
It is the highest degree of comparison
The plural of comparison is comparisons.
A comparison using like or as is a simile. A comparison without them is a metaphor.
Comparison happens after evaluation. Without evaluation ther is no comparison
Comparison is a noun.