Compare the maps. A map titled Physical Regions of Europe. The Alpine Mountains are shaded red. The Central Uplands are shaded green. The North European Plain is shaded purple. The Western Uplands is shaded yellow. A key shows populations of 500,000 to 1,000,000, 1,000,001 to 5,000,000, and More than 5,000,000. A map titled Climate Zones of Europe. A key shows populations of 500,000 to 1,000,000, 1,000,001 to 5,000,000, and More than 5,000,000. The Maritime climate includes Ireland, England, Norway, Sweden, Denmark, Belgium, Germany, Netherlands, Switzerland, Czech Republic, parts of France and Austria. Which physical region in the maritime climate zone has the largest populations? the North European Plain the Alpine Mountains the Western Uplands the Central Uplands