Here is a question about this article: The British adopted "effective ceiling", meaning the altitude at which a gun could deliver a series of shells against a moving target; this could be constrained by maximum fuse running time as well as the gun's capability. By the late 1930s the British definition was "that height at which a directly approaching target at 400 mph (=643.6 km/h) can be engaged for 20 seconds before the gun reaches 70 degrees elevation". However, effective ceiling for heavy AA guns was affected by non-ballistic factors:
What is the answer to this question: Who adopted the use of the term, effective ceiling?
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So... The British

Here is a question about this article: Accusing the rebels of being "drugged" and linked to al-Qaeda, Gaddafi proclaimed that he would die a martyr rather than leave Libya. As he announced that the rebels would be "hunted down street by street, house by house and wardrobe by wardrobe", the army opened fire on protests in Benghazi, killing hundreds. Shocked at the government's response, a number of senior politicians resigned or defected to the protesters' side. The uprising spread quickly through Libya's less economically developed eastern half. By February's end, eastern cities like Benghazi, Misrata, al-Bayda and Tobruk were controlled by rebels, and the Benghazi-based National Transitional Council (NTC) had been founded to represent them.
What is the answer to this question: Cities in what geographic part of Libya were controlled by rebels?
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So... eastern

Here is a question about this article: The official language of the Republic is Modern Standard Arabic. Arabic was adopted by the Egyptians after the Arab invasion of Egypt. The spoken languages are: Egyptian Arabic (68%), Sa'idi Arabic (29%), Eastern Egyptian Bedawi Arabic (1.6%), Sudanese Arabic (0.6%), Domari (0.3%), Nobiin (0.3%), Beja (0.1%), Siwi and others. Additionally, Greek, Armenian and Italian are the main languages of immigrants. In Alexandria in the 19th century there was a large community of Italian Egyptians and Italian was the "lingua franca" of the city.
What is the answer to this question: What is official language of Egypt?
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So...
Modern Standard Arabic