Answer:
Due to their different locations and purpose.
Step-by-step explanation:
The expedition of Daniel Boone is different from the expeditions of Zebulon Pike and John Frémont because the main aim of Daniel Boone expedition's was to discover a trail to the west through the Cumberland Gap. He crossed the Appalachian Mountains through the Cumberland Gap to Kentucky while on the other hand, the expeditions of Zebulon Pike occurs with the aim by exploring the source of the Mississippi River. He was instructed to find out the headwaters of the Arkansas, Red rivers and to investigate Spanish settlements in New Mexico. Frémont was sent to explore the Wind River and to make an exploration of the Oregon Trail.