Submarine defense: Russian subs posing Pacific threat to US Navy. Military & Defense. March 18, 2016, 13:28 UTC+3. Ahead of Submariner Day marked on March 19 in Russia, TASS reviews Russian submarines that cause the US Navyâs greatest concern in the Pacific region.
What iceberg lettuce lacks in flavor it makes up for in crispness, versatility and storage length -- washed and stored correctly, a head of iceberg lettuce can last up to seven days in the refrigerator.
Nutritional Value of Iceberg Lettuce. Iceberg lettuce is one of the main constituents in salads and is known for its crunchy texture. It has comparatively less nutrients than the other greens that you may find in salads. Nutritional Facts of Iceberg Lettuce. Iceberg lettuce is an excellent source of potassium and manganese, as well as a very good source of iron, calcium, magnesium, and phosphorous. It also contains traces of sodium, copper, and zinc.