Answer:
The acquiring of the territories gave the United States justification to send out immigrants into those territories and settle the land along the trails created by traders and trappers beforehand. These immigrants and other workers then set up the Transcontinental Railroad to facilitate trade and transport back and forth from the west coast to the east.
Answer:
C
Explanation:
C is the only event that happened with Mexico being discontent with Spain
The answer for your question is checks and balances.
Thus, the constitutional principles that does judicial review reflect are checks and balances.
Answer:
C
Explanation:
It proved that earlier methods for harvesting crops were inadequate, and inspired innovation as a result.
