Answer: machine gun
Explanation:
It mostly likely is all of above
It was "Albert Einstein" who <span>wrote to FDR in the summer of 1939 alerting him to a new form of energy, since Einstein was warning and informing FDR of the potential of "atomic energy". </span>
Most landforms change very slowly over many, many years. New mountains have formed as the plates of Earth's crust slowly collided, and others have been worn away by weathering and erosion. ... Floods and landslides can change landforms in a matter of seconds. Volcanic eruptions can also change landforms quickly.
This is true, Fidel Castro wanted to start a communist revolution in Cuba and that is exactly what he did.