What is the longest mountain range in North America?

Which mountain range runs along the border between Pakistan and Afghanistan? What is the highest mountain range in the British Isles? Which mountain range runs through the middle of the Italian peninsula? Which mountain range is home to the highest peak in Eastern Europe? What is the longest mountain range in Antarctica? What is the name of the mountain range that forms the border between Argentina and Chile? Which mountain range runs along the border between Germany and Czech Republic? What is the name of the mountain range that forms the border between Bulgaria and Greece?