What is a kremlin? a) a tall bell tower used to call russian citizens to prayer b) a multi-domed cathedral at the heart of a russian city c) a walled fortress designed to protect a russian city d) a place where the tsar and his family resided

The Kremlin is where Putin currently lives. It is a palace and several assisting buildings, with a wall around the whole thing. The Multi-domed building is St. Basil's Cathedral. The Tsar was probably in another palace,  on the run from Rasputin.

a.

congress passed laws allowing for free passage between states.

as general terms,  indian territory,  the indian territories, or  indian country  describe an evolving land area set aside by the  united states government  for the relocation of  native americans  who held  aboriginal title  to their land. in general, the tribes ceded land they occupied in exchange for  land grants  in 1803. the concept of an indian territory was an outcome of the 18th- and 19th-century policy of  indian removal. after the  civil war(1861–1865), the policy of the government was one of  assimilation.