Answer:
Chronological;
Lower
Explanation:
Since a six years old can conclude the puzzle in five minutes and Bailey took eight minutes to get it done, It can be assumed that his age is not up to six hence his inability to solve the puzzle quicker because according to Binet, a child will be able to solve a certain difficulty at a particular age.
The answer to your question is,
A prime meridian is a meridian in a geographic coordinate system at which longitude is defined to be 0°. Together, a prime meridian and its antimeridian form a great circle. This great circle divides the sphere, e.g., Earth, into two hemispheres.
-Mabel <3
