The end of the ordovician period was signaled by what

It’s in apex and it’s due in 30 minutes

Which choice describes some of the difficulties john adams faced as presiden

In 1816, john c. calhoun proposed that: a. that the federal government aid in the construction of roads and canals to improve transportation to and from the west b. the united states should end slavery. c. the united states should increasing the size of the navy and invade central america. d. the united states should annex hawaii