The Appalachian Mountains are older than the Rocky Mountains and therefore have had more time to weather and get worn down. The Rocky Mountains are still considered to be relatively young and haven't weathered as much.
Wind erosion is occurred when pieces of the earth are worn away by the strong winds. It occurs in dry bare areas when wind blows and moves the dirt around. Wind erosion causes damage to the crops by removing the soil which crops needed from it. ... Water erosion is the more powerful erosion than wind erosion.
I dont know about Glacier erosion.
hope this helped!
14 counties border Russia.
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Longitude lines are used to measure east and west.
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Buhari is the President of Nigeria