<human>:  Why are there so many mountains in the Alps?
<bot>: The Alps are a mountain range in Europe. The highest peak is Mont Blanc at 4,810 meters. There are many reasons why there are so many mountains in the Alps, but the most important one is plate tectonics. The Alps are made up of rocks that were once part of the ocean floor. As the continents moved, they collided and pushed up mountains.