I believe the answer is: A just-noticeable difference
In painting, A just-noticeable difference refers to the amount of things that needed to be change for a difference to be noticeable.
The threshold usually depended on the type of audience that being aimed toward, (for common audience, the threshold of differences would be relatively higher compared to expert audience)<span />
One of the most important factors in development is geography, where the country is in the world, and climate. ... Conversely, Europe and North America profit from huge tracts of very fertile land, a temperate climate, and good rainfall.
Answer:
it is helpful for you ok have a good time
