Which scandinavian country has the highest overall elevation

Norway

Explanation:

Officially there are three countries that compose Scandinavia, Norway, Sweden, and Denmark. Occasionally, Finland, Iceland, Faeroe Islands, and Aaland Islands are included, but that is only for local usage.

Out of the three countries, the one that has the biggest elevation is Norway, with Sweden coming as second, and Denmark having the lowest elevation. Norway's average elevation is 460 m. Sweden's average elevation is 320 m. Denmark's average elevation is only 34 m, making it the fifth joint lowest country in the world.

Norway has the highest elevation out of the three because the around half of the country is dominated by mountains, while Sweden also has mountains, it is mostly dominated by lowlands, and Denmark is entirely very low, lacking a single mountain or even a higher hill on its territory.