Jason and scott measured the masses i love their cell phones. josh measured his cell phone using kilograms. scott measured his cell phone by using grams. which measure would be more appropriate to measure a cell phone. can you tell me this is due tomorrow

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 a. primary sources are historical documents, and secondary sources are modern-day documents.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