The Volga river is the largest river in Europe, so that should be the answer.
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The answer is (s.) 1-2 centimeters. Every year, plates under the ocean move approximately 1-2 centimeters. This movement is the earthquake under the ocean and can also be called Submarine earthquake when the intensity goes high. This movement can lead to tsunamis.
From small beginnings, South America grew to greatness because of maize. Just did this and it's correct.