Which of these is not a correct match?
black hills–south dakota
virginia city–nevada
pikes peak–colorado
sacramento–nebraska

Which physical feature minimizes population density in northern africa?

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.

Number these events in the order in which they occurred. union forces retreated. union forces launched a surprise attack. more confederate troops arrived by train.