Answer:
The first agreements, known as SALT I and SALT II, were signed by the United States and the Union of Soviet Socialist Republics in 1972 and 1979, respectively, and were intended to restrain the arms race in strategic (long-range or intercontinental) ballistic missiles armed with nuclear weapons.
Explanation:
Answer:
Erosion
Explanation:
Over time it eroded into eachother causeing the plates to form upward.