Calvin's professor can conclude that Calvin has been an observational kid.
Explanation:
The observation Calvin makes is a rather arbitrary one but one that can invite broader concern nonetheless.
Some kids start bobbing their heads and raising them before they can ever turn while the other develop these skills in the opposite order.
It would remain to be seen if Calvin would think something can be inferred from this otherwise rather standalone observation of things or not as there may be a study on how far this can be taken in child psychology.
At any rate, he is an observational student and the professor can put that to use.
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 />
Answer:
Because when they were passing goods from India to Egypt the prices were raised. Ghengis khan and his mongol armies rose to power at the end of the twelfth century, at the moment wgen few opposinf rulers could put up much resistance to them. The vast mongol empire he created stretched from China to Europe, across which the silks routes functioned as efficient lines of communication as well as trade.
Explanation:
