Answer:
An archipelago is a large group of islands.
Explanation:
<span>Observations show that all galaxies tend to move away from earth, and that more distant galaxies move away from earth at faster velocities than do galaxies closer to the earth. these observations imply that</span> galaxies with high speeds as measured from Earth are moving away from Earth and are farther from Earth than galaxies with lower speeds.
I would say that the Rocky Mts were the youngest of all these mountain ranges as they were created between 80-55 million years ago during the Laramide Orogeny and also they are generally much taller than the other mountain ranges mentioned here which is a characteristic of young mountain ranges and their features are sharper as they haven't been eroded the way most of these others have so have been subject to erosion for less time than the others.
Answer:
its the world's longest unfortified border :))
