The distance between imaginary lines around the earth parallel to the equator. The relationship is that they all travel from east to west or visa versa.
Ecology.
they are all colonies
It is possible for all nine lines to be perpendicular to at least one other line.
Food Webes
What are relationships in dance? Is that the question? If it is then the relationship may be between the dancers on the stage, the relationship between the audience and the dancer, and the relationship between the dancer and the choreographer. All of which are important for a dancer to perform their best.
It all depends on the girl.
Yes, in relationships, in neighborhoods, in parks, in simple vicinity; all is possible and happens all of the time.
Not usually. Most relationships in which they don't fight at all, they aren't interested in the relationship anymore, however it is possible but only if you agree with everything :)
no not at all
Different Patterns
No, not in the same plane. But in 3 dimensions it is possible