The continent with the most indented coastline.

The ruggedness of the coastline of the mainland is the ratio of the length of the coastline to the area of the mainland. According to this indicator, the first place is occupied by North America (the area without islands is 20.36 million km², the length of the coastline is 60 thousand km). In second place is Eurasia (area ≈ 51 million km², coastline length 100 thousand km).



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