I came here to work <a href=" http://iorarua.com/iorarua/index.php?structure-of-an-argumentative-essay#keeping ">child labour essay in urdu</a> Cars pass by a zinc factory building with it's roof collapsed in Chelyabinsk, about 1500 kilometers (930 miles) east of Moscow, Friday, Feb. 15, 2013. There was no immediate clarification of whether the collapse was caused by meteorites or by a shock wave from one of the explosions. A meteor that scientists estimate weighed 10 tons (11 tons) streaked at supersonic speed over Russia's Ural Mountains on Friday, setting off blasts that injured some 500 people and frightened countless more. (AP Photo/Boris Kaulin)