This principle is defined as: "The difference in quality between two instances of an art element, or using opposing
qualities next to each other."
Balance
Contrast
Pattern
Symmetry

Ball is the direct object, because is the receiver of the action

British museum, london
because when you colonize a giant part of the world, you can collect a lot of cool stuff. many famous artifacts can be found in the museum including the rosetta stone and the elgin marbles.