What is the name of the supercontinent (large land mass) that once contained all of the continents on earth?

Highlight ideas in this passage that show why the anti-federalists objected to the constitution. if it were possible to consolidate the states, and preserve the features of a free government . . [w]ealth, offices, and the benefits of government would collect in the center: and the extreme states . . become much less important. . i still believe a complete federal bill of rights to be very practicable. which reasons below explain why the anti-federalists objected to the constitution? check all that apply power would be too centralized. a bill of rights was included. states would become less powerful. a bill of rights was not included. states would become more powerful.