Answer:
480 million years ago
The Appalachians first formed roughly 480 million years ago during the Ordovician Period, and once reached elevations similar to those of the Alps and the Rocky Mountains before they were eroded.
Explanation:
so b is your answer
Answer:providing for public safety- create correctional systems.
Protecting public health- oversee hospitals.
Organizing elections- establish primaries
Maintaining infrastructure-provide public transportation systems
Creating an education system-maintain colleges and universities
Explanation:just did it
Answer:
Climate change can disrupt food availability, reduce access to food, and affect food quality. For example, projected increases in temperatures, changes in precipitation patterns, changes in extreme weather events, and reductions in water availability may all result in reduced agricultural productivity.
Explanation:
google says so
Answer:
Judicial, execuetive and Legislative
Explanation:
