What does the “Supremacy Clause” state in the Constitution

One of the person important products for britain's manufacturers was

Read a report of the paris medical faculty from 1348 about the plague. we can say that the main cause of this pestilence was and is the configuration of the heavens. in 1345, at 1: 00 in the afternoon of march 20th, there was a major conjunction of three planets in the constellation of aquarius. this conjunction, along with others like it and the eclipse caused a deadly corruption of the air around us. what is the most likely reason this document would be important to a historian’s study of the black death? a) it shows the importance of astronomy in medicine today. b) it shows how medicine once differed in paris and london. c) it shows how the plague’s cause was interpreted in the past. d) it shows the desperation to find a cause of the black death.

Because the texas constitution does not have a "necessary and proper" clause, a government powers are almost unlimited b. much of what is included in the constitution is improper c. the governor has to make the laws d government is limited to what is in the constitution