Snow or ice that slides down a steep slope at great speed. Avalanches occur when the force of snow on the surface is formed under the influence of heavy snowfall, rapid melting of snow, rainfall, recrystallization of a loose layer of snow with a deepening. According to the nature of the landslide, it is divided into landslides, troughs and landslides. During an avalanche of dry snow, a wave of air appears in front of it, which has time to spread. Avalanches follow their former trampled path, the lake. 2 million m3, and the impact force is up to 60 - 100 t / m3. In landslide-prone mountains (Ili, Semirechye Alatau, etc.) avalanche protection systems (snow shields, artillery shelling of dangerous slopes, etc.) are established, deforestation is prohibited. Trees will be laid on landslide-prone slopes. Avalanches are caused by the collapse of vertical hanging glaciers and their downward movement.
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Авы не написать сочинение по языку - "как я отметил новый год"
1.i think that new year*s day is a family holiday
2. every year all our relatives come to us to celebrate it.
3. in the morning we begin to cook a lot of tasty and special dishes.
4. i clean our flat and decorate the rooms.
5. there is a tradition in our family to decorate a new year tree together: my parents. my sister and i.
6. it*s a very interesting process with wonderful result.
7. if the weather is fine we try to go skiing or skating.
8. in the evening we begin to lay the table/
9. usually we turn on the tv set and watch popular films or listen to the concerts.
10. when our guests come to us we meet the holiday happily and give presents to each other.
11. we always prepare different competitions with surprises.
12. we like tio sing karaoke. because it*s our hobby/
13. the new year is the best holiday for all my family!
12. all the day