In warfare, airports can become the focus of intense fighting, for example the Battle of Tripoli Airport or the Battle for Donetsk Airport, both taking place in 2014. An airport primarily for military use is called an airbase or air station. Most of the world's airports are owned by local, regional, or national government bodies.
Age of viability. The age at which a premature baby can survive outside of the uterus. The age of viability occurs sometime between 22 and 26 weeks, usually when the weight is greater than 500 grams. The probability of survival is slim at 22-23 weeks, but increases to approximately 85% at 26-28 weeks. Respiratory problems are the most common complications that a preterm infant experiences.
Confidence votes 70. The age of viability is 24-26 weeks gestation, although a baby born that early will have some complications. A baby born at 20weeks gestation cannot survive outside of the womb; therefore, the further along the pregnancy, the greater the chances of survival for the fetus.