Why was Andrew Johnson impeached why was his impeachment important

How did northem leaders try to encourage americans to buy goods made in the united states rather than foreign imports? a high taxes on imports to increase the cost of imported goods b low taxes on imports to increase the cost of imported goods c. high taxes on imports to decrease the cost of imported goods d. low taxes on imports to decrease the cost of imported goods e high taxes on imports to decrease the cost of manufactured goods

Which would make the best heading for this list of notes about the migration of african-americans during the reconstruction era?

Which physical feature minimizes population density in northern africa?