11. He probably skied into the avalanche area and set ( a snow slide ) off, 12. Working and living in winter in the presence of snow slides and avalanches caused some deaths. 13. Q . Snow slides off my rubber roof so much that it has become a hazard. 14. Summer temperatures have led to sudden snow slides on the higher peaks, especially in the afternoons. 15. Snow sliding off the rest of the house would not be a hazard to any passersby.16. The institute said there was a serious risk of snow slides throughout most of the Swiss Alps. 17. When snow slides , the bonds between the layers dissolve and the snow behaves much like liquid water. 18. Nine other students were injured when their weight unleashed a snow slide in the southern Alps on Friday. 19. He and a fellow skier in group of 12 were carried about 250 meters by the snow slide . 20. Two snow slides on Feb . 23, 1999, killed 38 people in the region of Galtuer, in Tyrol.
