Potassium iodide systemic is used in the treatment of: 1  Cough. 2  Cutaneous Sporotrichosis. 3  Hyperthyroidism. Radiation Emergency.
Some of them are very large in area such as Canada or Russia, while others are very small like Monaco. More importantly though, some of the world's countries are landlocked and others have very long coastlines that have enabled some of them to become powerful across the globe. The following is a list of the world's countries with the longest coastlines. The top ten have been included from longest to shortest. 1) Canada. Length: 125,567 miles (202,080 km).
Australiaâs Highway 1. As Highway 1 is Australiaâs coastal road, you will be able to start from anywhere and end up back where you started. This road is over 24,000kms which makes it the longest national highway in the world and as a road trip definitely not for the faint of heart. Throughout the 24,000 kms the quality of the road varies to a great degree.