Marshall Islands the islands' cultural heritage and so children could write in Marshallese. Now English language instruction begins in grade 3. Christine McMurray and Roy Smith wrote in "Diseases of Globalization: Socioeconomic Transition and Health" that this could potentially weaken the children's English skills. There are two tertiary institutions operating in the Marshall Islands, the College of the Marshall Islands and the University of the South Pacific. The Marshall Islands are served by the Marshall Islands International Airport in Majuro, the Bucholz Army Airfield in Kwajalein, and other small airports and airstrips. Airlines include United Airlines, Our Airline, Air Marshall Islands, and
Marshall Islands due to poor living conditions, lack of rain, or nuclear contamination. The uninhabited atolls are: The average altitude above sea level for the entire country is . In October 2011, the government declared that an area covering nearly of ocean shall be reserved as a shark sanctuary. This is the world's largest shark sanctuary, extending the worldwide ocean area in which sharks are protected from . In protected waters, all shark fishing is banned and all by-catch must be released. However, some have questioned the ability of the Marshall Islands to enforce this zone. The Marshall Islands also lays claim