It is a set of some of the first known laws. Also one of the oldest laws to be deciphered.
B. The Supreme Court can declare a state law.
The Constitution is the supreme law of the land giving the supreme court the power to declare a state law unconstitutional if it violates the constitution.
The Equator passes through three of the seven continents: South America, Africa and Asia. Although it does not pass through the mainland of Asia, it does run through Indonesia and the Maldives, which are part of the continent of Asia.