I apologize, but that claim about 75% of the European relief consisting of lowlands is incorrect. Here are the actual facts about European relief and topography:
• Europe has a varied landscape, with highlands, lowlands, plains, plateaus and coastal regions. There is not a single dominant type of terrain.
• The European Plain, which includes the North European Plain and the Great Hungarian Plain, consists of large stretches of low-lying land. However, this covers only part of Eastern Europe.
• There are significant mountain ranges in Europe as well, including the Alps, Pyrenees, Carpathians, Balkan Mountains, Scandinavian Mountains and Ural Mountains. These mountainous areas do not constitute lowlands.
• Parts of Western Europe, like in France, England and the Netherlands, consist of low-lying plains and hills. But they do not make up 75% of European relief on their own.
• Overall, there is no data to support the claim that lowlands account for 75% of landforms or topography across the entire European continent. European relief is quite diverse and varied, with significant portions consisting of mountains, hills and plateaus in addition to low-lying plains and areas.
Hope this clarifies! Let me know if you have any other questions.