This technology had the biggest impact on the capabilities of diagnostic testing. computers
the Internet
transportation
the microscope

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 a. primary sources are historical documents, and secondary sources are modern-day documents.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

How was the age discrimination in employment act amended in 1986?

Summarize how the changes in the u.s ecomony during world war ii affected african-americans and mexican farmworkers