Answer:
Cenozoic Era (of the Phanerozoic Eon).
Explanation:
Answer:
Population growth in the eastern states.
Availability of cheap, fertile land.
Economic opportunity, e.g., gold (California Gold Rush), logging, farming, freedom (for runaway slaves)
new life
more food
Explanation:
The one that is the role that the president carries out under the constitution and tradition is :
A. chief diplomat and head of state
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