What's the hardness of an oxygen?

The diagram shows fossils buried in layers of rock. which conclusion is best supported by the diagram?

What were the four terms that american had to agree in order to live in mexico texas

Ineed to finish this asap how did the bill of rights legally change the political system in england? a. it introduced a constitutional monarchy. b. it established a commonwealth. c. it restored absolute monarchy. d. it gave monarchs the right to veto laws. e. it guaranteed the right to religious equality.