Sienna shift her position on the gymnasium floor because her skin and the gymnasium floor reached thermal equilibrium.
Explanation:
indirect or representative democracy
People agree to social contracts because they establish governments which in turn establish a sense of order and security. It establishes a set of rules which makes people more comfortable when they have some to follow.
A government is based on a social contract. The people give up some of their natural rights and in return the government guarantees them something. A social contract is an agreement between an authority and the people in which they come to terms on an agreement. Our government like most is based on this kind of agreement.