12 3 4 5 6 7 8 9 10 time remaining 56: 02 someone’s mindset has a powerful influence on his/her perspective because a mindset a. involves the way he/she is used to thinking about things b. can easily be changed c. is not affected by his/her values d. cannot be influenced by what happened to someone in the past

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 a. primary sources are historical documents, and secondary sources are modern-day documents.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.