Plate tectonics is the theory that explains how Earth's land masses are in constant motion. Before this theory was discovered, Alfred Wegener found out about the continental drift. Its the hypothesis of how the continents drifted over the ocean bed.
The continental drift led to the theory of plate tectonics. The main reason that led to the movement of the continents is because of the movement of the plates in the lithosphere.
Plates are massive, irregularly shaped slabs of solid rock, generally composed of both continental and oceanic lithosphere.
The intense heat in the Earth's core make the plates to move.
Humans can be affected by volcanic events, sea level rise, and earthquakes, all of which are related to plate tectonics.
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Answer: Winner-takes-all elections> The dominance of the two major parties
Explanation: apex said so :)
Answer: they had come under the threat of communism.
Explanation:
The commitment of the Truman administration to “contain” communism was focused on the Soviet threat to western Europe. During the 1950s, the Eisenhower administration expanded America’s objective from protecting a divided Europe to combating Communist tyranny around the globe. To the Eisenhower administration, merely “containing” communism was no longer enough: the explicit objective became a “policy of boldness” designed to “roll back” communism around the world.
