How do the mineral resources in North America compare with the rest of the world?

North America is the only source of iron.
North America is the only source of silver.
North America has more copper producing locations than Asia.
North America has more diamond producing locations than Africa.

Hurry . what occurred at fort sumter on april 13, 1861? a) an ordinance to dissolve the union was drafted. b) leaders of the confederacy were nominated and elected. c) confederate troops captured the fort and claimed it as confederate territory. d) delegates from north carolina voted unanimously to secede from the union.